Update README.md

Improved usage instructions
Fixed docker image name in local usage example

Signed-off-by: Gennadiy Litvinyuk <[email protected]>

Author: gennadiylitvinyuk

README.md

@@ -30,7 +30,19 @@ Generally speaking, you will use this in combination with the [laminas/laminas-c
 
 ## Usage
 
+Create `.github/workflows/continuous-integration.yml` file with following content:
+
 ```yaml
+name: "Continuous Integration"
+
+on:
+  pull_request:
+  push:
+    branches:
+      - '[0-9]+.[0-9]+.x'
+      - 'refs/pull/*'
+    tags:
+
 jobs:
   matrix:
     name: Generate job matrix
@@ -155,7 +167,7 @@ The tricks to remember are:
 As an example, if you wanted to run the CS checks under PHP 7.4 using locked dependencies, you could do something like the following:
 
 ```bash
-$ docker run -v $(realpath .):/github/workspace -w=/github/workspace laminas-check-runner:latest '{"php":"7.4","deps":"locked","extensions":[],"ini":["memory_limit=-1"],"command":"./vendor/bin/phpcs"}'
+$ docker run -v $(realpath .):/github/workspace -w=/github/workspace ghcr.io/laminas/laminas-continuous-integration:1  '{"php":"7.4","deps":"locked","extensions":[],"ini":["memory_limit=-1"],"command":"./vendor/bin/phpcs"}'
 ```
 
 The trick to remember: the job JSON should generally be in single quotes, to allow the `"` characters used to delimit properties and strings in the JSON to not cause interpolation issues.