feat: print message when docker-entrypoint finishes (#703)

Co-authored-by: Kévin Dunglas <[email protected]>

Author: tcoch

frankenphp/docker-entrypoint.sh

@@ -55,6 +55,8 @@ if [ "$1" = 'frankenphp' ] || [ "$1" = 'php' ] || [ "$1" = 'bin/console' ]; then
 
 	setfacl -R -m u:www-data:rwX -m u:"$(whoami)":rwX var
 	setfacl -dR -m u:www-data:rwX -m u:"$(whoami)":rwX var
+
+	echo 'PHP app ready!'
 fi
 
 exec docker-php-entrypoint "$@"