Add Granian to servers (#12)

Co-authored-by: Giovanni Barillari <giovanni.barillari@sentry.io>

Author: RobertoPrevato

blacksheep/docs/asgi.md

@@ -3,7 +3,8 @@
 BlackSheep is an [ASGI](https://asgi.readthedocs.io/en/latest/) web framework,
 which requires an ASGI HTTP server to run, such as
 [Uvicorn](http://www.uvicorn.org/), or
-[Hypercorn](https://pgjones.gitlab.io/hypercorn/). All examples in this
+[Hypercorn](https://pgjones.gitlab.io/hypercorn/) or
+[granian](https://github.com/emmett-framework/granian). All examples in this
 documentation use `Uvicorn`, but the framework has also been tested with
 Hypercorn and should work with any server that implements the `ASGI`
 specification.

blacksheep/docs/getting-started.md

@@ -42,7 +42,8 @@ python -m venv venv
 
 BlackSheep is an [ASGI](https://asgi.readthedocs.io/en/latest/) web framework,
 so it requires an ASGI HTTP server like [uvicorn](http://www.uvicorn.org/), or
-[hypercorn](https://pgjones.gitlab.io/hypercorn/). Install `uvicorn` and
+[hypercorn](https://pgjones.gitlab.io/hypercorn/) or
+[granian](https://github.com/emmett-framework/granian). Install `uvicorn` and
 `blacksheep` for this tutorial:
 
 ```bash

blacksheep/docs/websocket.md

@@ -6,8 +6,9 @@ real-time applications, such as chat apps and similar use cases.
 
 BlackSheep can handle incoming WebSocket connections when used with an ASGI
 server that supports the WebSocket protocol (e.g.,
-[Uvicorn](https://www.uvicorn.org/#quickstart) or
-[Hypercorn](https://pgjones.gitlab.io/hypercorn/)).
+[Uvicorn](https://www.uvicorn.org/#quickstart),
+[Hypercorn](https://pgjones.gitlab.io/hypercorn/) or
+[Granian](https://github.com/emmett-framework/granian)).
 
 ## Creating a WebSocket route