Update 'README.md'

README.md

@@ -32,6 +32,20 @@
 git rm --cached -r dir
 ```
 
+## <details>
+<summary>push existing project to Git</summary>
+
+```bash
+git init
+git add .
+git commit -m "Add existing project files to Git"
+git remote add origin https://github.com/cameronmcnz/example-website.git
+git push -u -f origin master
+```
+
+</details>
+
+
 Git Commands
 ============
 ### Getting started