add favicon and local build instructions

Author: ianhi

README.md

@@ -43,6 +43,24 @@ cd xarray-tutorial
 pixi run tutorial
 ```
 
+### Building the Documentation Locally
+
+To build and serve the tutorial website locally as a development server:
+
+1. Build the Jupyter Book:
+```bash
+pixi run build
+```
+
+2. Serve the built site locally:
+```bash
+pixi run python -m http.server --directory _build/html
+```
+
+Then visit http://localhost:8000 in your browser.
+
+Note: The `build` command does not have live rebuilding. You'll need to re-run `pixi run build` after making changes to see updates.
+
 ## Contributing
 
 Contributions are welcome and greatly appreciated! See our [CONTRIBUTING.md](./CONTRIBUTING.md) document.

_config.yml

@@ -18,6 +18,7 @@ html:
   extra_footer: '<p>Xarray is a fiscally sponsored project of <a href="https://numfocus.org">NumFOCUS</a>, a nonprofit dedicated to supporting the open-source scientific computing community.<br> Theme by the <a href="https://ebp.jupyterbook.org">Executable Book Project</a>.</p> Content licensed under the terms of the <a href="https://www.apache.org/licenses/LICENSE-2.0.html">Apache 2.0 License</a>.'
   analytics:
     google_analytics_id: G-JRQHYVFQR7
+  favicon: "images/favicon.ico"
 
 parse:
   # https://jupyterbook.org/content/content-blocks.html?highlight=myst%20substitution#define-substitutions-for-your-whole-book