add info about camera frames

Author: liamcottle

README.md

@@ -22,7 +22,15 @@ Below is a list of features that are implemented in this library with helper met
 - [x] Turn Smart Switch Off
 - [x] Send messages to Team Chat
 - [x] Get Entity Info (Current state of Smart Switch / Smart Alarm)
-- [ ] Get CCTV Camera Frames (Currently disabled by Facepunch)
+- [ ] Get CCTV Camera Frames (Currently disabled in the Rust+ app by Facepunch)
+
+The CCTV Camera Frames are currently disabled in the Rust+ app and on the server by default, but you can enable it if you are a server admin by running the following command in the F1 console.
+
+```
+cctvrender.enabled true
+```
+
+Note: This will not enable CCTV in the Rust+ app, but will send jpeg packets back to you through the websocket.
 
 Here is the full list of requests that you can send. These are from the `AppRequest` message in the [rustplus.proto](./rustplus.proto) protobuf file that I wrote by hand.