Add release notes to the documentation (#2278)

Author: Kludex

docs/release-notes.md

@@ -0,0 +1 @@
+--8<-- "CHANGELOG.md"

mkdocs.yml

@@ -19,7 +19,6 @@ theme:
   features:
     - content.code.copy
 
-
 repo_name: encode/uvicorn
 repo_url: https://github.com/encode/uvicorn
 edit_uri: ""
@@ -29,6 +28,7 @@ nav:
   - Settings: "settings.md"
   - Deployment: "deployment.md"
   - Server Behavior: "server-behavior.md"
+  - Release Notes: "release-notes.md"
   - Contributing: "contributing.md"
 
 markdown_extensions:
@@ -40,4 +40,3 @@ markdown_extensions:
   - pymdownx.inlinehilite
   - pymdownx.snippets
   - pymdownx.superfences
-