docs: update image source url

Author: NeoScript

README.md

@@ -8,14 +8,14 @@ A minifid version of the google cloud pubsub emulator
 ```
 services:
   pse-lite:
-    image: #tbd
+    image: ghcr.io/neoscript/pubsub-emulator-lite:latest
     ports:
       - 8090:8090
 ```
 
 ### docker run
 Just pull the image and run it via `docker run`
 
-`docker run -p 8090:8090 (image)`
+`docker run -p 8090:8090 ghcr.io/neoscript/pubsub-emulator-lite:latest`
 
 Access it via `http://localhost:8090/`