message: docs: Add initial maintaining doc
diff: @@ -100,6 +100,10 @@ Want to contribute to Canvas Kit React? Please read our
  [contributing guidelines](./modules/docs/mdx/CONTRIBUTING.mdx) to find out more and how to get
  started.
  +## Maintaining
  +
  +If you're a Canvas Kit maintainer, please read our [maintaining docs](./modules/docs/mdx/MAINTAINING.mdx) to learn more about our processes.
  +
  ## Open Development
  All work on the Canvas Kit happens directly on [GitHub](https://github.com/Workday/canvas-kit). Both
  