clarify readme info and document reference.md file

Author: devalog

fern/products/sdks/guides/configure-readme.mdx

@@ -3,13 +3,14 @@ title: Customize README
 description: Guide to configuring the README in your SDK
 ---
 
-By default, the README for your SDKs is [generated programmatically](./sdk-user-features) and contains information about how your users can interact with your API. You can customize the content and structure of these README files across all of your SDKs by configuring the `readme` section in `generators.yml`.
+By default, the `README.md` for your SDKs is [generated programmatically](./sdk-user-features) and contains information about how your users can interact with your API. 
 
+Each SDK has its own README, but you control the content globally by configuring the `readme` section in `generators.yml`.
 
 ## Configuration options
 
 <Markdown src="/products/sdks/snippets/readme-options.mdx" />
 
 ## Additional customization
 
-For customization beyond these configuration options, you can [manually modify the README](/products/sdks/custom-code.mdx) and add it to your `.fernignore` file to prevent it from being overwritten during regeneration.
+For customization beyond these configuration options, you can [manually modify the `README.m`d](/products/sdks/custom-code.mdx) and add it to your `.fernignore` file to prevent it from being overwritten during regeneration.

fern/products/sdks/guides/generated-sdk.mdx

@@ -3,14 +3,22 @@ title: SDK user features
 description: How your customers can use your SDK
 ---
 
-Fern-generated SDKs provide a consistent set of features across all languages to help developers interact with your API. Usage information is auto-generated in your SDK's README, [which you can customize](./readme).
+Fern-generated SDKs provide a consistent set of features across all languages to help developers interact with your API. Usage information is auto-generated in your SDK's `README.md`, [which you can customize](./readme).
 
 ## Installation and basic usage
 
 Users install SDKs using standard package managers (npm for TypeScript, pip for Python, Maven/Gradle for Java, etc.) from language-specific registries.
 
 Users initialize the client with your API's base URL and any required authentication, then call methods on the client to interact with your API. Generated SDKs support modern runtimes across languages.
 
+## Reference
+
+The `README.md` file links to an auto-generated `reference.md` file
+([example](https://github.com/intercom/python-intercom/blob/HEAD/reference.md))
+that lists all available API methods organized by resource, including method
+signatures with parameter types, usage examples, and request/response structures
+for each endpoint.
+
 ## Error handling
 
 When the API returns a 4xx or 5xx status code, the SDK throws an error that includes the status code, error message, response body, and raw response object.