removed trailing slash

Using-a-Reverse-Proxy-with-Paperless-ngx.md

@@ -23,7 +23,7 @@ http {
 
             # Adjust host and port as required. 
             # For docker you need to use the docker network 172.17.0.1:8000 instead of localhost
-            proxy_pass http://localhost:8000/;
+            proxy_pass http://localhost:8000;
 
             # These configuration options are required for WebSockets to work.
             proxy_http_version 1.1;