Add PULL_REQUEST_TEMPLATE.md guidance to create_pull_request tool description#1077

Copilot wants to merge 2 commits intomaingithub/github-mcp-server:mainfrom

copilot/fix-4f46a350-e2fd-4df9-8f65-7f40b2ccc6b6github/github-mcp-server:copilot/fix-4f46a350-e2fd-4df9-8f65-7f40b2ccc6b6Copy head branch name to clipboard