Update README.md

Author: MekDrop

README.md

@@ -34,7 +34,7 @@ jobs:
         run: composer install --no-progress --no-suggest --prefer-dist --optimize-autoloader       
 
       - name: Generating documentation...
-        uses: impresscms-dev/[email protected]
+        uses: impresscms-dev/[email protected].4
         with:
           class_root_namespace: ImpressCMS\
           included_classes: ImpressCMS\**