Add documentation reference for Python package nbgv-python

Co-authored-by: AArnott <[email protected]>

Author: Copilot

docfx/docs/ecosystems/python.md

@@ -0,0 +1,11 @@
+# Python
+
+A community-contributed Python package [`nbgv-python`](https://pypi.org/project/nbgv-python/) brings Nerdbank.GitVersioning to the Python ecosystem.
+
+## Installation
+
+```bash
+pip install nbgv-python
+```
+
+See the [nbgv-python PyPI page](https://pypi.org/project/nbgv-python/) for usage instructions and documentation.

docfx/docs/getting-started.md

@@ -17,6 +17,7 @@ See relevant documentation for any of these topics:
 
 * [.NET](ecosystems/dotnet.md)
 * [Node](ecosystems/node.md)
+* [Python](ecosystems/python.md)
 * [VSIX](ecosystems/vsix.md)
 
 ## Build

docfx/docs/toc.yml

@@ -16,6 +16,7 @@ items:
   - href: ecosystems/node.md
     items:
     - href: npm-acquisition.md
+  - href: ecosystems/python.md
   - href: ecosystems/vsix.md
 - href: nbgv-cli.md
 - href: path-filters.md