Updates to add community information such as mailing list

Signed-off-by: Jeff Scheel <scheel@us.ibm.com>

README.md

@@ -42,6 +42,12 @@ can be found in the LICENSE file or online at
 
   http://www.apache.org/licenses/LICENSE-2.0
 
+## Community
+To comment on, propose changes, and engage in community dialogue, you can open issues 
+in the [Project Issues](https://github.com/OpenPOWERFoundation/Docs-Template/issues), post to
+the community mailing list \([syssw-doc_devel_guide@mailinglist.openpowerfoundation.org](mailto://syssw-doc_devel_guide@mailinglist.openpowerfoundation.org)\), or 
+join the #doc-devel channel in the OpenPOWER Foundation Slack room \([openpowerfoundation.slack.com](https://openpowerfoundation.slack.com/)\).
+
 ## Contributions
 To contribute to the OpenPOWER Foundation template document project, contact Jeff Scheel \([scheel@us.ibm.com](mailto://scheel@us.ibm.com)\) or 
 Jeff Brown \([jeffdb@us.ibm.com](mailto://jeffdb@us.ibm.com)\).