add medium link to footer and linkedin to teachers

app/views/layouts/_footer.html.haml

@@ -34,7 +34,7 @@
         %li.icon-angle-right= link_to "Payment Plans" , page_path(:payment)
         %li.icon-angle-right= link_to "Application Process", page_path(:apply)
         %li.icon-angle-right= link_to "Prepare yourself", page_path(:prepare)
-        %li.icon-angle-right= ext_link "Beginner guide", "https://medium.com/webdev-camp/tagged/basics"
+        %li.icon-angle-right= ext_link "Beginners guide", "https://medium.com/webdev-camp/tagged/basics"
       %h6.letter-spacing-1 JOBS
       %ul.footer-links.list-unstyled
         %li.icon-angle-right= link_to "Teaching" , page_path(:teaching)
@@ -80,7 +80,8 @@
           %i.icon-twitter
         =social_link("https://www.instagram.com/webdev.camp", "instagram") do
           %i.icon-instagram
-
+        = social_link( "https://medium.com/webdev-camp" , "medium" ) do
+          =image_tag "logos/medium.png"
   .container-fluid
     .row.copyright
       .col-md-7

app/views/pages/course.html.haml

@@ -501,10 +501,10 @@
             %hr/
             = social_link( "https://github.com/dancinglightning" , "github" ) do
               %i.fa.icon-github
-            = social_link( "https://github.com/rubyclerks" , "github" ) do
-              %img{ src: "https://avatars0.githubusercontent.com/u/6094466?v=3&s=38"}
-            = social_link( "https://github.com/salama" , "github" ) do
-              %img{ src: "https://avatars1.githubusercontent.com/u/7279238?v=3&s=38"}
+            = social_link( "https://medium.com/@torsten_webdev" , "medium" ) do
+              =image_tag "logos/medium.png"
+            = social_link( "https://www.linkedin.com/in/torsten-ruger-4667a3132/" , "linkedin" ) do
+              %i.fa.icon-linkedin
       .col-md-4.col-sm-6.flip-container.margin-bottom-20{:ontouchstart => "this.classList.toggle('hover');"}
         .flipper
           .frontt.box-default
@@ -553,6 +553,8 @@
               %i.fa.icon-facebook
             = social_link( "https://soundcloud.com/raisa-andtorsten-kaipainen" , "soundcloud" ) do
               %i.fa.icon-soundcloud
+            = social_link( "https://www.linkedin.com/in/raisa-kaipainen-597205148/" , "linkedin" ) do
+              %i.fa.icon-linkedin
     .row
       .col-md-12.centered
         %h4