Add small documentation improvements

docs/index.md

@@ -1,3 +1,10 @@
+<style>
+  .md-typeset h1,
+  .md-content__button {
+    display: none;
+  }
+</style>
+
 <p align="center">
   <img width="320" height="320" src="../../uvicorn.png" alt='uvicorn'>
 </p>
@@ -20,9 +27,13 @@
 
 ---
 
-# Introduction
+**Documentation**: [https://www.uvicorn.org](https://www.uvicorn.org)
+
+**Source Code**: [https://www.github.com/encode/uvicorn](https://www.github.com/encode/uvicorn)
 
-Uvicorn is an ASGI web server implementation for Python.
+---
+
+**Uvicorn** is an ASGI web server implementation for Python.
 
 Until recently Python has lacked a minimal low-level server/application interface for
 async frameworks. The [ASGI specification][asgi] fills this gap, and means we're now able to
@@ -35,13 +46,13 @@ Uvicorn currently supports **HTTP/1.1** and **WebSockets**.
 Install using `pip`:
 
 ```shell
-$ pip install uvicorn
+pip install uvicorn
 ```
 
 This will install uvicorn with minimal (pure Python) dependencies.
 
 ```shell
-$ pip install 'uvicorn[standard]'
+pip install 'uvicorn[standard]'
 ```
 
 This will install uvicorn with "Cython-based" dependencies (where possible) and other "optional extras".
@@ -58,7 +69,7 @@ Moreover, "optional extras" means that:
 
 - the websocket protocol will be handled by `websockets` (should you want to use `wsproto` you'd need to install it manually) if possible.
 - the `--reload` flag in development mode will use `watchfiles`.
-- windows users will have `colorama` installed for the colored logs.
+- Windows users will have `colorama` installed for the colored logs.
 - `python-dotenv` will be installed should you want to use the `--env-file` option.
 - `PyYAML` will be installed to allow you to provide a `.yaml` file to `--log-config`, if desired.
 
@@ -72,7 +83,8 @@ async def app(scope, receive, send):
         'type': 'http.response.start',
         'status': 200,
         'headers': [
-            [b'content-type', b'text/plain'],
+            (b'content-type', b'text/plain'),
+            (b'content-length', b'13'),
         ],
     })
     await send({
@@ -84,7 +96,7 @@ async def app(scope, receive, send):
 Run the server:
 
 ```shell
-$ uvicorn main:app
+uvicorn main:app
 ```
 
 ---
@@ -194,7 +206,7 @@ def create_app():
 ```
 
 ```shell
-$ uvicorn --factory main:create_app
+uvicorn --factory main:create_app
 ```
 
 ## The ASGI interface
@@ -400,9 +412,9 @@ It is run widely in production, and supports HTTP/1.1, HTTP/2, and WebSockets.
 
 Any of the example applications given here can equally well be run using `daphne` instead.
 
-```
-$ pip install daphne
-$ daphne app:App
+```shell
+pip install daphne
+daphne app:App
 ```
 
 ### Hypercorn
@@ -412,9 +424,9 @@ being separated out into a standalone ASGI server.
 
 Hypercorn supports HTTP/1.1, HTTP/2, HTTP/3 and WebSockets.
 
-```
-$ pip install hypercorn
-$ hypercorn app:App
+```shell
+pip install hypercorn
+hypercorn app:App
 ```
 
 ---

mkdocs.yml

@@ -1,6 +1,7 @@
 site_name: Uvicorn
 site_description: The lightning-fast ASGI server.
 site_url: https://www.uvicorn.org
+strict: true
 
 theme:
   name: material
@@ -21,6 +22,7 @@ theme:
         name: "Switch to light mode"
   features:
     - content.code.copy # https://squidfunk.github.io/mkdocs-material/upgrade/?h=content+copy#contentcodecopy
+    - navigation.sections # https://squidfunk.github.io/mkdocs-material/setup/setting-up-navigation
     - navigation.top # https://squidfunk.github.io/mkdocs-material/setup/setting-up-navigation/#back-to-top-button
     - navigation.footer # https://squidfunk.github.io/mkdocs-material/upgrade/?h=content+copy#navigationfooter
     - toc.follow # https://squidfunk.github.io/mkdocs-material/setup/setting-up-navigation/#anchor-following
@@ -29,6 +31,12 @@ repo_name: encode/uvicorn
 repo_url: https://github.com/encode/uvicorn
 edit_uri: edit/master/docs/
 
+# https://www.mkdocs.org/user-guide/configuration/#validation
+validation:
+  omitted_files: warn
+  absolute_links: warn
+  unrecognized_links: warn
+
 nav:
   - Introduction: index.md
   - Settings: settings.md
@@ -38,6 +46,7 @@ nav:
   - Contributing: contributing.md
 
 markdown_extensions:
+  - attr_list
   - admonition
   - codehilite:
       css_class: highlight
@@ -46,6 +55,9 @@ markdown_extensions:
   - pymdownx.inlinehilite
   - pymdownx.snippets
   - pymdownx.superfences
+  - pymdownx.emoji:
+      emoji_index: !!python/name:material.extensions.emoji.twemoji
+      emoji_generator: !!python/name:material.extensions.emoji.to_svg
 
 hooks:
   - docs/plugins/main.py