Add third-party CSRF middlewares (#1414)

* change github issues template

* Add third-party CSRF middlewares

Co-authored-by: Tom Christie <tom@tomchristie.com>

docs/middleware.md

@@ -250,6 +250,10 @@ This middleware adds authentication to any ASGI application, requiring users to
 using their GitHub account (via [OAuth](https://developer.github.com/apps/building-oauth-apps/authorizing-oauth-apps/)).
 Access can be restricted to specific users or to members of specific GitHub organizations or teams.
 
+#### [asgi-csrf](https://github.com/simonw/asgi-csrf)
+
+Middleware for protecting against CSRF attacks. This middleware implements the Double Submit Cookie pattern, where a cookie is set, then it is compared to a csrftoken hidden form field or an `x-csrftoken` HTTP header.
+
 #### [AuthlibMiddleware](https://github.com/aogier/starlette-authlib)
 
 A drop-in replacement for Starlette session middleware, using [authlib's jwt](https://docs.authlib.org/en/latest/jose/jwt.html)
@@ -259,6 +263,10 @@ module.
 
 A middleware class for logging exceptions to [Bugsnag](https://www.bugsnag.com/).
 
+#### [CSRFMiddleware](https://github.com/frankie567/starlette-csrf)
+
+Middleware for protecting against CSRF attacks. This middleware implements the Double Submit Cookie pattern, where a cookie is set, then it is compared to an `x-csrftoken` HTTP header.
+
 #### [EarlyDataMiddleware](https://github.com/HarrySky/starlette-early-data)
 
 Middleware and decorator for detecting and denying [TLSv1.3 early data](https://tools.ietf.org/html/rfc8470) requests.