docs(readme): add replacement PR feature to list (#13194)

readme.md

@@ -18,6 +18,7 @@ Multi-platform and multi-language.
 - Bot behavior is extremely customizable via configuration files (config as code)
 - Use ESLint-like shared config presets for ease of use and simplifying configuration (JSON format only)
 - Lock files are natively supported and updated in the same commit, including immediately resolving conflicts whenever PRs are merged
+- Get replacement PRs to migrate from a deprecated dependency to the community suggested replacement (npm packages only)
 - Supports GitHub (.com and Enterprise), GitLab (.com and CE/EE), Bitbucket Cloud, Bitbucket Server, Azure DevOps and Gitea.
 - Open source (installable via npm/Yarn or Docker Hub) so can be self-hosted or used via GitHub App