add check port to script

bin/MemeGenerator

@@ -24,9 +24,13 @@ echo $1
 case $1 in
     "start")
         source env/bin/activate
-        export FLASK_ENV=development
+        if pgrep -f "flask run --host 0.0.0.0 --port 8000"; then
+            echo "Error: index server is already running"
+            exit 1
+        fi
         export FLASK_APP=MemeGenerator
         flask run --host 0.0.0.0 --port 8000
+        echo "MemeGenerator is running on port 8000!"
     ;;
     "stop")
         pkill -f "flask run --host 0.0.0.0 --port 8000" || true