new resources

resources.md

@@ -11,7 +11,9 @@
 - [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/git/why-you-should-use-git/
 - 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
+- https://betterexplained.com/articles/a-visual-guide-to-version-control/