Minor corrections, section adjustments, new utils.

One of my google search results linked to your excellent collection. I found 2
of my utilities in the list and got curious. It's extremely useful to users
looking for categorized Linux software in a well-maintained list!

I have made some minor corrections and added added googler and Buku to more
relevant sections. I have also added the following new utilities (to sections I
believe are appropriate):

- imgp (a very fast multi-core batch image resizer and rotator)
- keysniffer (Linux kernel mode debugfs keylogger to audit activities in a
              possibly compromised system)
- nnn (A tiny and very fast file browser cum du analyzer with DE integration)
- bcal (handy storage conversion calculator)
- pdd (tiny time and date diff calculator)

I am the author of these utilities and most of them are available on several
distros including Debian and Ubuntu. They are actively maintained as well.

Thank you very much for maintaining this! :)

README.md

@@ -417,6 +417,7 @@ Brazilian Portugese version : [here](https://github.com/LewisVo/Awesome-Linux-So
 - [Midnight Commander](https://www.midnight-commander.org/) - A feature rich full-screen file manager that allows you to copy, move and delete files and whole directory trees. [![Open-Source Software][OSS Icon]](https://github.com/MidnightCommander)
 - [Nautilus](https://wiki.gnome.org/Apps/Nautilus) - Nautilus (Files) is a file manager designed to fit the Gnome desktop design and behaviour, giving the user a simple way to navigate and manage its files.[![Open-Source Software][OSS Icon]](https://github.com/GNOME/nautilus)
 - [Nemo](http://askubuntu.com/questions/294421/how-do-i-install-nemo-file-manager) - Nemo is the file manager for the Cinnamon desktop environment.[![Open-Source Software][OSS Icon]](https://github.com/linuxmint/nemo)
+- [nnn](https://github.com/jarun/nnn) - A very lightweight and fast terminal file browser with excellent desktop integration. [![Open-Source Software][OSS Icon]](https://github.com/jarun/nnn)
 - [QDirStat](https://github.com/shundhammer/qdirstat#ubuntu) - Qt-based directory statistics - KDirStat without any KDE, from the original KDirStat author.[![Open-Source Software][OSS Icon]](https://github.com/shundhammer/qdirstat)
 - [Ranger](http://ranger.nongnu.org/) - Ranger is a console file manager with VI key bindings.[![Open-Source Software][OSS Icon]](https://github.com/ranger/ranger)
 - [Thunar](https://apps.ubuntu.com/cat/applications/precise/thunar/) - Thunar is the file manager designed to be the default file manager of Xfce 4.6 It has been designed to be fast and easy to use. [![Open-Source Software][OSS Icon]](https://github.com/luisgg/thunar)
@@ -498,6 +499,7 @@ Brazilian Portugese version : [here](https://github.com/LewisVo/Awesome-Linux-So
 - [GIMP](https://www.gimp.org/downloads/) - GIMP is a freely distributed program for such tasks as photo retouching, image composition and image authoring[![Open-Source Software][OSS Icon]](https://github.com/GNOME/gimp)
 - [Hugin](http://hugin.sourceforge.net/) - an easy to use cross-platform panoramic imaging toolchain based on Panorama Tools.
 - [ImageMagik](http://www.imagemagick.org/script/index.php) - ImageMagick is a suite of command-line utilities for modifying and working with images.
+- [imgp](https://github.com/jarun/imgp) - Blazing fast image resizer and rotator. [![Open-Source Software][OSS Icon]](https://github.com/jarun/imgp)
 - [Luminance HDR](http://qtpfsgui.sourceforge.net/) - Luminance HDR is an open source graphical user interface application that aims to provide a workflow for HDR imaging. [![Open-Source Software][OSS Icon]](https://github.com/LuminanceHDR/LuminanceHDR)
 - [Photivo](http://photivo.org/) - Photivo is a free and open source (GPL3) photo processor, handles your RAW and bitmap files (TIFF, JPEG, BMP, PNG and many more) in a non-destructive 16 bit processing pipe with gimp workflow integration and batch mode. It is intended to be used in a workflow together with digiKam/F-Spot/Shotwell and Gimp. [![Open-Source Software][OSS Icon]](https://github.com/google-code-export/photivo)
 - [Pixelitor](http://pixelitor.sourceforge.net/) - Pixelitor is a free and open source image editing software that supports layers, layer masks, text layers, filters, multiple undo etc. [![Open-Source Software][OSS Icon]](https://github.com/lbalazscs/Pixelitor)
@@ -568,7 +570,9 @@ Brazilian Portugese version : [here](https://github.com/LewisVo/Awesome-Linux-So
 - [Yandex](https://browser.yandex.com/desktop/main/) - Fast and convenient browser.
 
 #### Supportive Tool
+- [Buku](https://github.com/jarun/Buku) - Command line bookmark manager.[![Open-Source Software][OSS Icon]](https://github.com/jarun/Buku)
 - [Clipgrab](https://clipgrab.org/) - A friendly downloader for YouTube and other sites.
+- [googler](https://github.com/jarun/googler) - Google any stuff right in the command line.[![Open-Source Software][OSS Icon]](https://github.com/jarun/googler)
 - [Tor](https://www.torproject.org/) - Tor is free software and an open network that helps you defend against traffic analysis, a form of network surveillance that threatens personal freedom and privacy.
 - [youtube-dl](https://github.com/rg3/youtube-dl) - It can download videos from youtube.com or other video platforms. It's really awesome, at least for me.  [![Open-Source Software][OSS Icon]](https://github.com/rg3/youtube-dl)
 - [youtube-dlg](https://mrs0m30n3.github.io/youtube-dl-gui/#downloads) Youtube-dlg is a GUI for youtube-dl and allows for simple copy and paste from all youtube-dl compatible websites. It can auto-update youtube-dl as well as process a list of URL's in parallel. [![Open-Source Software][OSS Icon]](https://github.com/MrS0m30n3/youtube-dl-gui)
@@ -637,9 +641,11 @@ Brazilian Portugese version : [here](https://github.com/LewisVo/Awesome-Linux-So
 
 #### Miscellaneous
 - [Ambient Noise](https://itsfoss.com/ambient-noise-music-player-ubuntu/) - Install ambient noise for extra focus on Linux.
+- [bcal](https://github.com/jarun/bcal) - Perform storage conversions and calculations. [![Open-Source Software][OSS Icon]](https://github.com/jarun/bcal)
 - [CopyQ](http://hluk.github.io/CopyQ/) -CopyQ is advanced clipboard manager with editing and scripting features. [![Open-Source Software][OSS Icon]](https://github.com/hluk/CopyQ)
 - [f.lux](https://justgetflux.com/linux.html) - Automatically adjust your computer screen to match lighting.
 - [Gpick](http://www.gpick.org/) - Gpick allows you to sample any color from anywhere on your desktop, and it also provides some other advanced features! [![Open-Source Software][OSS Icon]](https://github.com/thezbyg/gpick)
+- [pdd](https://github.com/jarun/pdd) - Tiny date, time diff calculator. [![Open-Source Software][OSS Icon]](https://github.com/jarun/pdd)
 - [Redshift](http://jonls.dk/redshift/) - Redshift adjusts the color temperature of your screen according to your surroundings. This may help your eyes hurt less if you are working in front of the screen at night.[![Open-Source Software][OSS Icon]](https://github.com/jonls/redshift)
 - [SpeedCrunch](http://www.speedcrunch.org/) - A nice, open source, high-precision scientific calculator. [![Open-Source Software][OSS Icon]](http://www.speedcrunch.org/)
 - [Undistract me](https://github.com/jml/undistract-me) - Notifies you when long-running terminal commands complete. [![Open-Source Software][OSS Icon]](https://github.com/jml/undistract-me)
@@ -692,6 +698,7 @@ Brazilian Portugese version : [here](https://github.com/LewisVo/Awesome-Linux-So
 - [GnuPG](https://www.gnupg.org/) - Gnu Privacy Guard
 - [GuFW](http://gufw.org/) - One of the easiest firewalls in the world of Linux. [![Open-Source Software][OSS Icon]](https://code.launchpad.net/gui-ufw)
 - [IPrange](https://github.com/firehol/iprange) - A very fast command line utility for processing IP lists (merge, compare, exclude, etc). [![Open-Source Software][OSS Icon]](https://github.com/firehol/iprange)
+- [keysniffer](https://github.com/jarun/keysniffer) - Linux kernel mode debugfs keylogger. [![Open-Source Software][OSS Icon]](https://github.com/jarun/keysniffer)
 - [Lynis](https://cisofy.com/lynis/) - Security auditing tool for Linux, macOS, and UNIX-based systems. Assists with compliance testing (HIPAA/ISO27001/PCI DSS) and system hardening. Agentless, and installation optional. [![Open-Source Software][OSS Icon]](https://github.com/CISOfy/lynis)
 - [OpenSSH](http://www.openssh.com/) - OpenSSH Secure Shell Server and Client
 - [Password Safe](https://pwsafe.org/) - Password Safe allows you to safely and easily create a secured and encrypted user name/password list. [![Open-Source Software][OSS Icon]](https://sourceforge.net/projects/passwordsafe/)
@@ -836,14 +843,12 @@ Brazilian Portugese version : [here](https://github.com/LewisVo/Awesome-Linux-So
 - [2048](https://itsfoss.com/best-command-line-games-linux/) - Play the famous 2048 in commandline.[![Open-Source Software][OSS Icon]](https://itsfoss.com/best-command-line-games-linux/)
 - [Bastet](https://github.com/fph/bastet) - Play Tetris in commandline.[![Open-Source Software][OSS Icon]](https://github.com/fph/bastet)
 - [Backgammon](https://itsfoss.com/best-command-line-games-linux/) - Play Backgammon in commandline.[![Open-Source Software][OSS Icon]](https://itsfoss.com/best-command-line-games-linux/)
-- [Buku](https://github.com/jarun/Buku) - Command line bookmark managers.[![Open-Source Software][OSS Icon]](https://github.com/jarun/Buku)
 - [Color LS](http://www.omgubuntu.co.uk/2017/07/add-bling-ls-bash-command-colorls) - Color Ls is a Ruby Gem that spices up the ls command and shows more visually than ls does without additional commands. [![Open-Source Software][OSS Icon]](https://github.com/athityakumar/colorls)
 - [Daily Reddit Wallpaper](https://github.com/ssimunic/Daily-Reddit-Wallpaper) - Change your wallpaper to the most upvoted image of the day from /r/wallpapers or any other subreddit on system startup. [![Open-Source Software][OSS Icon]](https://github.com/ssimunic/Daily-Reddit-Wallpaper)
 - [exa](https://the.exa.website/) - exa is a modern replacement for ls. [![Open-Source Software][OSS Icon]](https://github.com/ogham/exa)
 - [Fishfry](https://github.com/LubuntuFu/fishfry) - replaces fish history with a history tailored to pentesters for efficiency and newbie pentesters for learning.[![Open-Source Software][OSS Icon]](https://github.com/LubuntuFu/fishfry)
 - [fzf](https://github.com/junegunn/fzf) - General-purpose command-line fuzzy finder with interactive filter and preview feature for things like files, command history, git commits, hostnames, etc.
 - [Gkill](https://github.com/heppu/gkill) - Interactive process killer for Linux. [![Open-Source Software][OSS Icon]](https://github.com/heppu/gkill)
-- [Googler](https://itsfoss.com/review-googler-linux/) - Google any stuff right in the command line.[![Open-Source Software][OSS Icon]](https://github.com/jarun/googler)
 - [Glances](https://nicolargo.github.io/glances/) - Glances is a system monitoring terminal application that shows you your disk usage, ram usage, and cpu usage in a very friendly way using the Ncurses programming library. It is tolerant to windows resizing, and very low on system ram useage. [![Open-Source Software][OSS Icon]](https://github.com/nicolargo/glances)
 - [Greed](https://itsfoss.com/best-command-line-games-linux/) - Tron game in the linux command line.[![Open-Source Software][OSS Icon]](https://itsfoss.com/best-command-line-games-linux/)
 - [gtop](https://github.com/aksakalli/gtop) - System monitoring dashboard for terminal. Think 'graphical top', with bar charts, line graphs, pie charts etc [![Open-Source Software][OSS Icon]](https://github.com/aksakalli/gtop)