Documents root 1st user case

tasks/become_user_cfg.yml

 ---
+# When 1st user is root, set it as "remote_user"  and remove all "become: yes"
 - hosts: "{{ host_list }}"
   become_method: sudo
   remote_user: "{{ my_user }}"
+  #remote_user: root
 
   tasks:
     - name: SUDO | Group sudo presence