updated docs and task sequence

tasks/main.yml

diff --git a/tasks/main.yml b/tasks/main.yml
index 3895bee..f485a8c 100644
--- a/tasks/main.yml
+++ b/tasks/main.yml
@@ -13,7 +13,7 @@
     name: "{{ opdk_user_name }}"
     comment: "OPDK user"
     group: "{{ opdk_group_name }}"
-    create_home: no
+    createhome: no
 
 - name: Ensure that OPDK staging folder is in place
   become: yes