Update README.md

Author: thomaspoignant

README.md

@@ -1,2 +1,12 @@
-# flags-config-deployer
-A simple repository in charge of publishing to S3 the latest version of your flag configuration
+## Flags Config Deployer
+
+[![Deploy to S3](https://github.com/go-feature-flag/flags-config-deployer/actions/workflows/deployer.yaml/badge.svg)](https://github.com/go-feature-flag/flags-config-deployer/actions/workflows/deployer.yaml)
+
+This repository deploys configurations for GO Feature Flag to Amazon S3. 
+Every commit merged to the `main` branch triggers a deployment, making the latest flag configuration available.
+
+If a configuration is not valid the flag will be rejected.
+
+---
+
+_This repository is used to manage the internal instance of GO Feature Flag used by the GO Feature Flag team._