Added Reverse Proxy section to docs

Author: JulianPrieber

README.md

@@ -11,7 +11,8 @@
   <a href="#4">Supported Architectures</a> •
   <a href="#5">Deployment</a> •
   <a href="#6">Updating</a> •
-  <a href="#7">Build</a>
+  <a href="#7">Build</a> •
+  <a href="#8">Reverse Proxy</a>
 </p><br>
 
 <p align="center">
@@ -172,10 +173,6 @@ This updater allows you to update your installation with just one click.
 
 <br>
 
----
-
-<br>
-
 <a name="7"></a>
 ## Build
 
@@ -189,5 +186,48 @@ From the docker directory, run the command:
 docker build -t littlelink-custom .
 </pre>
 
+<br>
+
+<a name="8"></a>
+## Reverse Proxy
+
+### NGINX:
+
+**Below is an example NGINX setup for a reverse proxy.**
+<details><pre>
+
+server {
+  listen        443 ssl;
+  listen        [::]:443 ssl;
+  listen        80;
+  listen        [::]:80;
+  server_name   your.domain.name;
+
+  location / {
+    proxy_pass                          http://192.168.XXX.XXX;
+    proxy_set_header Host               $host;
+    proxy_set_header X-Real-IP          $remote_addr;
+
+    proxy_set_header X-Forwarded-For    $proxy_add_x_forwarded_for;
+    proxy_set_header X-Forwarded-Proto  https;
+    proxy_set_header X-VerifiedViaNginx yes;
+    proxy_read_timeout                  60;
+    proxy_connect_timeout               60;
+    proxy_redirect                      off;
+
+    # Specific for websockets: force the use of HTTP/1.1 and set the Upgrade header
+    proxy_http_version 1.1;
+    proxy_set_header Upgrade $http_upgrade;
+    proxy_set_header Connection 'upgrade';
+    proxy_cache_bypass $http_upgrade;
+    proxy_set_header X-Forwarded-Proto $scheme;
+    
+    # Fixes Mixed Content errors.
+    add_header 'Content-Security-Policy' 'upgrade-insecure-requests';
+  }
+}
+
+</pre></details>
+
 <br>
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