home.md

@@ -8,6 +8,8 @@
 * [쓰레드, 태스크](paul-csharp-6.task)
 * [C# 변화(4.0, 5.0, 6.0)](paul-csharp-evolution)
 
+## Git Markdown Doc (https://help.github.com/categories/writing-on-github/)
 
 ## Q & A
 * [AA](QnA)
+