Explain how to update

docs/get-started.md

@@ -32,6 +32,16 @@ Follow these steps:
 
 1. Start the bridge: `npm run start`
 
+## Update
+
+Out Of Your Element regularly releases new versions. Here's how to update:
+
+1. Fetch the repo and checkout the latest release tag.
+
+1. Install dependencies: `npm install`
+
+1. Restart the bridge: Stop the currently running process, and then start the new one with `npm run start`
+
 # Get Started
 
 Visit the website on the domain name you set up, and click the button to add the bot to your Discord server.