Specify default mode in documentation

README.md

@@ -7,7 +7,7 @@ COMMANDS
 
 OPTIONS
     --mode, -m MODE
-        1. recreate (remove container if it already exists and create a new one)
+        1. recreate (default) (remove container if it already exists and create a new one)
         2. persistent (reuse existing container if it exists)
     --options, -o OPTIONS
         OPTIONS to pass to podman run/exec