updated README

README.md

@@ -1,6 +1,13 @@
+https://en.wikipedia.org/wiki/Markdown
+
+There is no official Markdown specification and there are many different \
+implementations.\
+This seems intended by the creators of the language.
+
 #### TODO
 
-- count number of headings for each heading level \
-while intial reading of the file or file contents \
-(what is the highest level possible?)
-- search for official markdown specification
+- count number of headings for each heading level
+(loop through all headings, find the highest heading level, get all used levels\
+then create a slice or slice of maps and append after each deeper level discovered...)
+- add docs
+- delph deeper into different Markdown implementations (like CommonMark)