docs: add MCP section (gitkraken#130)

docs: add MCP section (gitkraken#130)

docs: add MCP section (gitkraken#130)

docs: add MCP section (gitkraken#130)

docs: add MCP section (gitkraken#130)

docs: add MCP section (gitkraken#130)

docs: add MCP section (gitkraken#130)

Add comprehensive comments to action.yml for better understanding

- Added file header explaining the action's purpose
- Added detailed comments for each step explaining what it does and why
- Clarified input parameter usage
- Explained the version extraction process
- Documented URL construction logic
- Clarified checksum calculation and verification purpose
- Improved step names for better readability
- Added TODO note for debug step removal

Addresses GKCLI-857: Add commentaries for better understanding

Update README.md

Update README.md