Update deployment/proxies.rst

Co-authored-by: Oskar Stark <oskarstark@googlemail.com>

Author: jderusse

deployment/proxies.rst

@@ -40,7 +40,7 @@ and what headers your reverse proxy uses to send information::
         // or, if your proxy instead uses the "Forwarded" header
         // Request::HEADER_FORWARDED
 
-        // or, if you're using wellknow proxy
+        // or, if you're using a wellknown proxy
         // Request::HEADER_X_FORWARDED_AWS_ELB
         // Request::HEADER_X_FORWARDED_TRAEFIK
     );