Update README.md

Author: captmicr0

README.md

@@ -10,45 +10,17 @@ entrypoint calls `initdb` to create the default `postgres` user and database,
 it will run any `*.sql` files and source any `*.sh` scripts found in that
 directory to do further initialization before starting the service.*
 
-This directory contains a script to create multiple databases using that
-mechanism.
-
-## Usage
-
-### By mounting a volume
-
-Clone the repository, mount its directory as a volume into
-`/docker-entrypoint-initdb.d` and declare database names separated by commas in
-`POSTGRES_MULTIPLE_DATABASES` environment variable as follows
-(`docker-compose` syntax):
+## Usage (docker-compose)
 
     myapp-postgresql:
-        image: postgres:9.6.2
+        image: ghcr.io/captmicr0/docker-postgresql-multiple-databases:latest
         volumes:
             - ../docker-postgresql-multiple-databases:/docker-entrypoint-initdb.d
         environment:
             - POSTGRES_MULTIPLE_DATABASES=db1,db2
             - POSTGRES_USER=myapp
             - POSTGRES_PASSWORD=mypassword
 
-### By building a custom image
-
-Clone the repository, build and push the image to your Docker repository,
-for example for Google Private Repository do the following:
-
-    docker build --tag=eu.gcr.io/your-project/postgres-multi-db .
-    gcloud docker -- push eu.gcr.io/your-project/postgres-multi-db
-
-You still need to pass the `POSTGRES_MULTIPLE_DATABASES` environment variable
-to the container:
-
-    myapp-postgresql:
-        image: eu.gcr.io/your-project/postgres-multi-db
-        environment:
-            - POSTGRES_MULTIPLE_DATABASES=db1,db2
-            - POSTGRES_USER=myapp
-            - POSTGRES_PASSWORD=mypassword
-
 ### Non-standard database names
 
 If you need to use non-standard database names (hyphens, uppercase letters etc), no quotes are needed with this fork: