Fixes #4490 - Update Piranha Core Profile documentation

Author: mnriem

dist/coreprofile/src/site/markdown/index.md

@@ -14,7 +14,50 @@ The following components are available in the Piranha Core Profile distribution:
 * Jakarta JSON Binding
 * Jakarta RESTful Web Services
 
-## Documentation
+## Download Piranha Core Profile
+
+Piranha Core Profile is available as a JAR file from Maven Central.
+
+The download link below will take you to the location on Maven Central where you
+can download any version of Piranha Core Profle. Select the version by clicking
+on the directory link and then download the JAR file from there.
+
+<a href="https://repo1.maven.org/maven2/cloud/piranha/dist/piranha-dist-coreprofile/">Download</a>
+
+Note the name of the JAR file you want to download should look like
+piranha-dist-coreprofile-X.Y.Z.jar    
+
+## Quickstart
+
+Assuming you have downloaded the JAR file as previously indicated running 
+Piranha Core Profile is as simple as:
+
+```
+java -jar piranha-dist-coreprofile-X.Y.Z.jar --war-file your-webapplication.war
+```
+
+## Running using Docker
+
+If you want to run Piranha Core Profile using Docker we have a base image
+available for you using Eclipse Temurin as the underlying runtime.
+
+See https://github.com/piranhacloud/piranha/pkgs/container/coreprofile for
+more information and how to pull that image.
+
+To use this as a base image you would create your own Dockerfile and add your 
+WAR file using a COPY and change the CMD to point to your WAR file as
+illustrated below:
+
+```Dockerfile
+FROM ghcr.io/piranhacloud/coreprofile:latest
+COPY target/my.war my.war
+USER root
+RUN chown -R piranha:piranha /home/piranha
+USER piranha
+CMD ["java", "-jar", "piranha-dist-coreprofile.jar", "--war-file", "my.war"]
+```
+
+## Guides
 
 1. [Create a REST service](create_a_rest_service.html)
 1. [Create a JSON REST service](create_a_json_rest_service.html)