Add examples site

This commit adds example's site. Different the list of libraries, the
examples are the projects using modules natively. The difference is
that the libraries are mostly producer of modules but not consumers.
Since these libraries have to consider backport compatibilities.
However, these example projects don't have any consumers so they can use
the modules natively without consuming the users using the old
interfaces get broken.

Readme.md

@@ -68,4 +68,5 @@ python.exe generate_vcpkg_usage_stats.py --repo_path=C:\vcpkg
 - /content/
     - tools.md                  # Tools site
     - documents.md              # Documents site
+    - examples.md               # Examples site
 ```

content/examples.md

@@ -0,0 +1,7 @@
+This page records good examples of projects using modules natively. This is pretty helpful to give us a feeling 
+about how to develop with modules.
+
+- [infinity](https://github.com/infiniflow/infinity)
+- [technical-machine](https://github.com/davidstone/technical-machine)
+- [atr](https://github.com/kaimfrai/atr/tree/main)
+- [async_simple's modules branch](https://github.com/alibaba/async_simple/tree/CXX20Modules)

hugo.yaml

@@ -19,6 +19,9 @@ menu:
     - name: Docs
       url: /Documents/
       weight: 2
+    - name: Examples
+      url: /Examples/
+      weight: 3
     - name: Follow me
       url: https://bsky.app/profile/kelteseth.bsky.social
     - name: Contribute on Github