Update README

Author: jpenilla

README.md

@@ -4,6 +4,7 @@
 <h1>cloud-processors</h1>
 
 ![license](https://img.shields.io/github/license/incendo/cloud.svg)
+[![central](https://img.shields.io/maven-central/v/org.incendo/cloud-processors-bom)](https://search.maven.org/search?q=org.incendo)
 ![build](https://img.shields.io/github/actions/workflow/status/incendo/cloud-processors/build.yml?logo=github)
 [![docs](https://img.shields.io/readthedocs/incendocloud?logo=readthedocs)](https://cloud.incendo.org)
 </div>
@@ -13,6 +14,7 @@
 - [cloud-processors-confirmation](./cloud-processors-confirmation): Command confirmation requirements
 - [cloud-processors-cooldown](./cloud-processors-cooldown): Command cooldowns
 - [cloud-processors-requirements](./cloud-processors-requirements): Command requirement system
+- cloud-processors-bom: [bill of materials](https://maven.apache.org/guides/introduction/introduction-to-dependency-mechanism.html#Importing_Dependencies) for cloud-processors dependencies
 
 ## links