Replaced all references of downstream docs to upstream docs (#15388)

* Replaced all references of downstream docs to upstream docs.

* Update README.md

Co-authored-by: Don Naro <dnaro@redhat.com>

* Update README.md.j2

Co-authored-by: Don Naro <dnaro@redhat.com>

* Update README.md.j2

Co-authored-by: Don Naro <dnaro@redhat.com>

* Incorpor'd review feedback from @oraNod and @samccann

* Updated with agreed link (for now) until further change is needed.

---------

Co-authored-by: Don Naro <dnaro@redhat.com>

awx_collection/tools/roles/template_galaxy/templates/README.md.j2

@@ -37,7 +37,7 @@ This collection should be installed from [Content Hub](https://cloud.redhat.com/
 ## Running
 
 Non-deprecated modules in this collection have no Python requirements, but
-may require the official [AWX CLI](https://docs.ansible.com/ansible-tower/latest/html/towercli/index.html)
+may require the AWX CLI
 in the future. The `DOCUMENTATION` for each module will report this.
 
 You can specify authentication by a combination of either:
@@ -46,8 +46,7 @@ You can specify authentication by a combination of either:
  - host, OAuth2 token
 
 The OAuth2 token is the preferred method. You can obtain a token via the
-AWX CLI [login](https://docs.ansible.com/ansible-tower/latest/html/towercli/reference.html#awx-login)
-command.
+``login`` command with the AWX CLI.
 
 These can be specified via (from highest to lowest precedence):