Merge pull request #369 from bootjp/copilot/sub-pr-367-again

Fix redis-proxy deployment docs: workflow trigger accuracy and docker run port mapping

Author: bootjp

docs/redis-proxy-deployment.md

@@ -4,7 +4,7 @@ redis-proxy is a Redis-protocol reverse proxy that enables gradual migration fro
 
 ## Docker Image
 
-Pre-built images are published to GitHub Container Registry on every push to `main`:
+Pre-built images are published to GitHub Container Registry when relevant files change on `main` (see path filters in the workflow):
 
 ```
 ghcr.io/bootjp/elastickv/redis-proxy:latest