docs: add license configuration examples for SDK generators (#1755)

Co-authored-by: Devin AI <158243242+devin-ai-integration[bot]@users.noreply.github.com>
Co-authored-by: danny@buildwithfern.com <danny@buildwithfern.com>
Co-authored-by: Devin Logan <devinannlogan@gmail.com>

Author: 3 people

fern/products/sdks/overview/python/publishing-to-pypi.mdx

@@ -84,10 +84,12 @@ groups:
 
 	<Step title="Add PyPI metadata (optional)">
 
-	     You can add metadata to your PyPI package to improve discoverability and provide additional information to users. This metadata appears on your package's PyPI page and includes `keywords` for PyPI search and discovery, `documentation-link` for your package documentation, and `homepage-link` for your project homepage.
+	You can add publishing metadata to your PyPI package to improve discoverability and provide additional information to users. This metadata appears on your package's PyPI page and includes `keywords` for PyPI search and discovery, `documentation-link` for your package documentation, and `homepage-link` for your project homepage. 
+	
+	You can additionally add general metadata for the SDK (description, contact email, author, license, etc.) at [the individual SDK level](/learn/sdks/reference/generators-yml#metadata-2) or [globally for all SDKs](/learn/sdks/reference/generators-yml#metadata). 
 
 
-```yaml title="generators.yml" {9-12}
+```yaml title="generators.yml" {9, 13}
 groups: 
   python-sdk:
     generators:
@@ -96,10 +98,12 @@ groups:
         output:
           location: pypi
           package-name: your-package-name
-          metadata:
+          metadata: # Publishing metadata
             keywords: ["api", "sdk", "client"]
             documentation-link: "https://docs.yourcompany.com"
             homepage-link: "https://yourcompany.com"
+        metadata: # General SDK metadata
+          license: MIT
         config:
           client_class_name: YourClientName
 ```

fern/products/sdks/reference/generators-yml-reference.mdx

@@ -1,7 +1,7 @@
 ---
 title: generators.yml configuration schema
 description: Reference for the generators.yml configuration
-max-toc-depth: 2
+max-toc-depth: 3
 ---
 
 The `generators.yml` file configures how Fern generates SDKs from your API