message: Add guide that shows how to write testable docstrings to the issue form in github.
diff: @@ -44,6 +44,9 @@ https://www.tensorflow.org/versions/r2.0/api_docs/python/tf/feature_column/categ
  Is there a usage example?
  +See the API guide: https://www.tensorflow.org/community/contribute/docs_ref
  +on how to write testable usage examples.
  +
  ### Request visuals, if applicable
  Are there currently visuals? If not, will it clarify the content?
  @@ -51,5 +54,6 @@ Are there currently visuals? If not, will it clarify the content?
  ### Submit a pull request?
  Are you planning to also submit a pull request to fix the issue? See the docs
  -contributor guide: https://www.tensorflow.org/community/contribute/docs and the
  +contributor guide: https://www.tensorflow.org/community/contribute/docs,
  +docs API guide: https://www.tensorflow.org/community/contribute/docs_ref and the
  docs style guide: https://www.tensorflow.org/community/contribute/docs_style
  