E2E List cmd and added API calls (#3)

* Completed List cmd and added API calls

* Minor comments and add delete code to pass linting

* Typo in descriptions

* Minor comments

* Validations

* Validations-1

* improved branch flag validation

* removed build

* Minor comments and Readme

README.md

@@ -1 +1,28 @@
-# gh-actions-cache
+# gh-actions-cache
+
+## Local Development
+
+1. Build the extension using 
+
+        go build
+
+2. Install the extension
+
+
+        gh extension install <filepath-to-build>
+
+
+    If you are already in the same directory use this `gh extension install .`
+
+3. Run the command
+
+        gh actions-cache <command> [Flags]
+
+
+## Troubleshooting
+
+1. `symlink /Users/.../gh-actions-cache /Users/.../share/gh/extensions/gh-actions-cache: file exists`
+
+Uninstall the current version of extension using
+
+    gh extension remove gh-actions-cache