copies 'Contributing' intro from README to CONTRIBUTING

Author: jeana-redhat

CONTRIBUTING.adoc

@@ -0,0 +1,27 @@
+= Contributing to OpenShift documentation
+// NOTE: This text mirrors the "Contributing to OpenShift documentation" section in ./README.adoc
+// If you update one, update both.
+
+If you are interested in contributing to OpenShift technical documentation, you can view all our link:./contributing_to_docs[resources] that will help you get set up and provide more information.
+
+
+The following table provides quick links to help you get started.
+
+[options="header"]
+|===
+
+|Question |Link
+
+|I'm interested, how do I contribute?
+|See the link:/contributing_to_docs/contributing.adoc[contributing] topic to learn more about this repository and how you can contribute.
+
+|Are there any basic guidelines to help me?
+|The link:/contributing_to_docs/doc_guidelines.adoc[documentation guidelines] topic provides some basic guidelines to help us keep our content consistent, and includes other style information.
+
+|How do I set up my workstation?
+|See the link:/contributing_to_docs/tools_and_setup.adoc[tools and setup] topic to set up your workstation.
+
+|How do I edit an existing topic, or create new content?
+|See the link:/contributing_to_docs/create_or_edit_content.adoc[create or edit content] topic to get started.
+
+|===

README.adoc

@@ -10,6 +10,9 @@ All OpenShift documentation is sourced in https://asciidoc.org/[AsciiDoc] and tr
 The documentation published from these source files can be viewed at https://docs.openshift.com.
 
 == Contributing to OpenShift documentation
+// NOTE: This text is mirrored in ./CONTRIBUTING.adoc
+// If you update one, update both.
+
 If you are interested in contributing to OpenShift technical documentation, you can view all our link:./contributing_to_docs[resources] that will help you get set up and provide more information.