Update backend docs with newest update

content/4.backend/2.configuration.md

@@ -52,7 +52,12 @@ This overwrites the setting at `server.cors`.
 Example: `false`
 
 ### `server.trustProxy`
-Should the server trust reverse proxy headers? This is used for ratelimiting
+Should the server trust reverse proxy headers? This is used to identify users for ratelimiting
+
+Example: `false`
+
+### `server.trustCloudflare`
+Should the server trust cloudflare IP headers? This is used to identify users for ratelimiting
 
 Example: `false`
 

content/4.backend/3.changelog.md

@@ -1,6 +1,18 @@
 ---
 title: 'Changelog'
 ---
+
+# Version 1.2.0
+
+Bugfixes and optimization.
+
+For this update, you will need to run migrations.
+
+- Added option to trust cloudflare IP headers for ratelimits
+- Removed unused table
+- Optimized prometheus metrics, should make less indexes
+
+
 # Version 1.1.5
 
 Initial version of the backend.