Support for ignoring file deletions

The main change in this release is the ability to ignore file deletions by setting ignore_file_deletions: true. Additionally, there were some documentation updates and tests written to capture regressions.

What's Changed

• Match the whole label with grep by @lionseal in #65
• chore: use github.api_url as default by @fty4 in #62
• Improve the existing contribution guide by @johnlk in #74
• Support ignoring file deletions by @johnlk in #76
• Fix broken logo link in readme by @johnlk in #75

New Contributors

• @lionseal made their first contribution in #65
• @fty4 made their first contribution in #62

Full Changelog: v1.9.0...v1.10.0