Merge pull request #967 from Bananamilk452/issue-890-document-focused-checks-for-integration-packages

Add instructions for running focused checks on integration packages

Author: dahlia

docs/manual/integration.md

@@ -12,6 +12,13 @@ Integration
 Fedify is designed to be used together with web frameworks.  This document
 explains how to integrate Fedify with web frameworks.
 
+When changing an integration package, run its focused check with the package
+name.  For example, after changing *@fedify/express*, run:
+
+~~~~ sh
+mise run check-each express
+~~~~
+
 
 How it works
 ------------