Tidying up contribution docs

docs/latest/contributing.md

@@ -10,7 +10,8 @@ Fork the repository, make your change and submit a pull request.
   - `react-viewerbase`: Reusable React Component Library
   - `Viewers`: The glue, PWA, and primary extension point
 - At a minimum, you may want to read the following documentation:
-  - h
+  - [Essentials: Getting Started](./essentials/getting-started.md)
+  - [Advanced: Architecture](./advanced/architecture.md)
 
 ## Any guidance on submitting changes?
 
@@ -18,12 +19,8 @@ While we do appreciate code contributions, triaging and integrating contributed
 code changes can be very time consuming. Please consider the following tips when
 working on your pull requests:
 
-- Functionality is appropriate for the repository. Consider posting on the forum
-  if you are not sure.
-- Code quality is acceptable. We don't have coding standards defined, but make
-  sure it passes ESLint and looks like the rest of the code in the repository.
-- Quality of design is acceptable. This is a bit subjective so you should
-  consider posting on the forum for specific guidance.
+- Functionality is appropriate for the repository. Consider creating a GitHub
+  issue to discuss your suggested changes.
 - The scope of the pull request is not too large. Please consider separate pull
   requests for each feature as big pull requests are very time consuming to
   understand.