Don't publish pre-release

.github/workflows/docker.yml

@@ -1,10 +1,8 @@
 name: Docker
 
 on:
-    push:
-        # Publish `v1.2.3` tags as releases.
-        tags:
-            - v*
+    release:
+        types: [release]
 
     # Run tests for all PRs to master.
     pull_request:

README.md

@@ -33,7 +33,7 @@ docker run --rm --name cyberchef -it -p 80:80 cyberchef
 Or you can use our image directly:
 
 ```bash
-docker run --rm --name cyberchef -it -p 80:80 ghcr.io/gchq/CyberChef:latest
+docker run --rm --name cyberchef -it -p 80:80 ghcr.io/gchq/cyberchef:latest
 ```
 
 This image is built and published through our [GitHub Workflows](.github/workflows/docker.yml)