chore: update CONTRIBUTING.md file

Author: pyansys-automation

CONTRIBUTING.md

@@ -1,2 +1,12 @@
-# Contributing 
+# Contribute
 
+Overall guidance on contributing to a PyAnsys library appears in the
+[Contributing] topic in the *PyAnsys developer's guide*. Ensure that you
+are thoroughly familiar with this guide before attempting to contribute to
+{project-name}.
+
+The following contribution information is specific to {project-name}.
+
+[Contributing]: https://dev.docs.pyansys.com/how-to/contributing.html
+
+<!-- Begin content specific to your library here. -->