Merge branch 'master' of https://git.idiv.de/scientific-computing/git-course

resources.md

@@ -11,3 +11,7 @@
 - [visual git guide](http://marklodato.github.io/visual-git-guide/index-en.html)
 - [simple git guide](http://rogerdudler.github.io/git-guide/)
 
+- http://sixrevisions.com/web-development/git-myths/
+- http://sixrevisions.com/web-development/git-tips/
+- https://www.git-tower.com/learn/git/ebook/en/command-line/introduction#start
+- https://try.github.io/levels/1/challenges/1