add readme.md

README.md

-register.ahoadon
+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