docs: badge update (#119)

Co-authored-by: Conall Ó Cofaigh <[email protected]>

Author: jojustin

README.md

@@ -1,6 +1,6 @@
 # IBM Cloud Databases for EnterpriseDB module
 
-[![Stable (With quality checks)](https://img.shields.io/badge/Status-Stable%20(With%20quality%20checks)-green?style=plastic)](https://terraform-ibm-modules.github.io/documentation/#/badge-status)
+[![Graduated (Supported)](https://img.shields.io/badge/Status-Graduated%20(Supported)-brightgreen)](https://terraform-ibm-modules.github.io/documentation/#/badge-status)
 [![pre-commit](https://img.shields.io/badge/pre--commit-enabled-brightgreen?logo=pre-commit&logoColor=white)](https://github.com/pre-commit/pre-commit)
 [![latest release](https://img.shields.io/github/v/release/terraform-ibm-modules/terraform-ibm-icd-edb?logo=GitHub&sort=semver)](https://github.com/terraform-ibm-modules/terraform-ibm-icd-edb/releases/latest)
 [![Renovate enabled](https://img.shields.io/badge/renovate-enabled-brightgreen.svg)](https://renovatebot.com/)