Update README.md

Author: choglundsp

README.md

@@ -31,6 +31,7 @@ The following attributes are required for each user:
 * password - If a hash is provided then that will be used, but otherwise the
   account will be locked
 * groups - a list of supplementary groups for the user.
+* profile - a string block for setting custom shell profiles
 * ssh-key - This should be a list of ssh keys for the user. Each ssh key
   should be included directly and should have no newlines.
 
@@ -48,9 +49,14 @@ Example:
         name: Foo Barrington
         groups: ['wheel','systemd-journal']
         uid: 1001
+        profile: |
+          alias ll='ls -lah'
         ssh_key:
           - "ssh-rsa AAAAA.... foo@machine"
           - "ssh-rsa AAAAB.... foo2@machine"
+    groups_to_create:
+      - name: developers
+        gid: 10000
     users_deleted:
       - username: bar
         name: Bar User