CCM-12896: README change to allow PR

Author: gareth-allan

README.md

@@ -1,5 +1,7 @@
 # NHS Notify Digital Letters
 
+Test
+
 [![CI/CD Pull Request](https://github.com/NHSDigital/nhs-notify-digital-letters/actions/workflows/cicd-1-pull-request.yaml/badge.svg)](https://github.com/NHSDigital/nhs-notify-digital-letters/actions/workflows/cicd-1-pull-request.yaml)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=NHSDigital_nhs-notify-digital-letters&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=NHSDigital_nhs-notify-digital-letters)