Add workflow description to badges section of README.md

README.md

@@ -230,13 +230,19 @@ Extract the latest version from the changelog during a release:
 
 ## Badges
 
-Heylogs make it possible to generate nice badges using a [GitHub workflow](https://github.com/nbbrd/heylogs/blob/develop/.github/workflows/heylogs.yml) and the [shields.io API](https://shields.io/badges/endpoint-badge).  
+Heylogs makes it possible to generate badges for the unreleased changes of a changelog using a [GitHub workflow](https://github.com/nbbrd/heylogs/blob/develop/.github/workflows/heylogs.yml) and the [shields.io API](https://shields.io/badges/endpoint-badge).  
+
+This workflow has the following steps:
+1. it [summarizes](https://github.com/nbbrd/heylogs#maven-plugin) the changelog content into a json file
+2. it converts this json file to a format that [shields.io](https://shields.io/badges/endpoint-badge) can understand
+3. it pushes the result to a [dedicated branch](https://github.com/nbbrd/heylogs/tree/badges)
+
 Here are some examples:
 
-![Endpoint Badge](https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fnbbrd%2Fheylogs%2Fbadges%2Funreleased-changes.json)  
-![Endpoint Badge](https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fnbbrd%2Fheylogs%2Fbadges%2Funreleased-changes.json&label=changelog)  
-![Endpoint Badge](https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fnbbrd%2Fheylogs%2Fbadges%2Funreleased-changes.json&label=changelog&logo=none)  
-![Endpoint Badge](https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fnbbrd%2Fheylogs%2Fbadges%2Funreleased-changes.json&label=%20)
+![default](https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fnbbrd%2Fheylogs%2Fbadges%2Funreleased-changes.json)  
+![with custom label](https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fnbbrd%2Fheylogs%2Fbadges%2Funreleased-changes.json&label=changelog)  
+![without icon](https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fnbbrd%2Fheylogs%2Fbadges%2Funreleased-changes.json&label=changelog&logo=none)  
+![without label](https://img.shields.io/endpoint?url=https%3A%2F%2Fraw.githubusercontent.com%2Fnbbrd%2Fheylogs%2Fbadges%2Funreleased-changes.json&label=%20)
 
 ## Developing