📝 add point about documentation to contributing provideers

CONTRIBUTING.md

@@ -101,6 +101,7 @@ Continue has support for more than a dozen different LLM "providers", making it
 2. Add your provider to the `LLMs` array in [core/llm/llms/index.ts](./core/llm/llms/index.ts).
 3. If your provider supports images, add it to the `PROVIDER_SUPPORTS_IMAGES` array in [core/llm/index.ts](./core/llm/index.ts).
 4. Add the necessary JSON Schema types to [`config_schema.json`](./extensions/vscode/config_schema.json). This makes sure that Intellisense shows users what options are available for your provider when they are editing `config.json`.
+5. Add a documentation page for your provider in [`docs/docs/reference/Model Providers`](./docs/docs/reference/Model%20Providers). This should show an example of configuring your provider in `config.json` and explain what options are available.
 
 ### Adding Models