update readme

README.md

-Đăng ký online ahoadon
-Command line instructions
-
-Git global setup
-git config --global user.name "Phạm Quang Huy"
-git config --global user.email "huypq@dcv.vn"
-
-Create a new repository
-git clone http://git.dcv.vn/huypq/register.ahoadon.git
-cd register.ahoadon
-touch README.md
-git add README.md
-git commit -m "add README"
-git push -u origin master
-
-Existing folder
-cd existing_folder
-git init
-git remote add origin http://git.dcv.vn/huypq/register.ahoadon.git
-git add .
-git commit -m "Initial commit"
-git push -u origin master
-
-Existing Git repository
-cd existing_repo
-git remote rename origin old-origin
-git remote add origin http://git.dcv.vn/huypq/register.ahoadon.git
-git push -u origin --all
-git push -u origin --tags
\ No newline at end of file
+# Đăng ký online ahoadon
+## Command line instructions
+
+### Git global setup
+> git config --global user.name "Phạm Quang Huy"
+
+> git config --global user.email "huypq@dcv.vn"
+
+### Create a new repository
+> git clone http://git.dcv.vn/huypq/register.ahoadon.git
+
+> cd register.ahoadon
+
+> touch README.md
+
+> git add README.md
+
+> git commit -m "add README"
+
+> git push -u origin master
+
+### Existing folder
+> cd existing_folder
+
+> git init
+
+> git remote add origin http://git.dcv.vn/huypq/register.ahoadon.git
+
+> git add .
+
+> git commit -m "Initial commit"
+
+> git push -u origin master
+
+### Existing Git repository
+> cd existing_repo
+
+> git remote rename origin old-origin
+
+> git remote add origin http://git.dcv.vn/huypq/register.ahoadon.git
+
+> git push -u origin --all
+
+> git push -u origin --tags