Remove syntax from script, keep it in readme (DRY)

README.md

@@ -7,7 +7,7 @@ Usage
 -----
 
 - Define users as last arguments to `docker run`, one user per argument  
-  (syntax: `user:[pass[:e]][:[uid][:gid]]`).
+  (syntax: `user:pass[:e][:[uid][:gid]]`).
   - You must set custom UID for your users if you want them to make changes to
     your mounted volumes with permissions matching your host filesystem.
 - Mount volumes in user's home folder.

run

@@ -1,7 +1,6 @@
 #!/bin/bash
 
 for users in "$@"; do
-    # user:[pass[:e]][:[uid][:gid]]
     IFS=':' read -a data <<< "$users"
     user="${data[0]}"
     pass="${data[1]}"