As a USER, I want to see a link to the GitHub repo so that I can look at the code

I maintain an api-reference canister for icpp-pro (C++ CDK):
Try it out in Candid UI

• The API Reference example code can be found in a Github repo icpp-demos
• The API Reference is also covered in the docs: API Reference

My feature request
As a user, when I am trying it out in Candid UI, and I find an API that is exactly what I am looking for, I want to see links to the underlying code and the related documentation. It is all about discoverability of the important information and not losing time searching for it.

Describe the solution you'd like

• As a developer of canisters, I would like to be able to include metadata in the custom section of the wasm file that is picked up by Candid UI and displayed to the User. I would like to be able to add:
  • Link to GitHub
  • Link to documentation

Start with Candid UI's handling of Wasm custom sections and the API Reference canister described in the issue. Determine how GitHub and documentation links should be encoded and displayed when a user finds an API, then verify that both links are discoverable from the Candid UI.