Update README.md (#335)

Author: sapientpants

README.md

@@ -1,6 +1,6 @@
 # SonarQube MCP Server
 
-[![CI](https://github.com/sapientpants/sonarqube-mcp-server/actions/workflows/ci.yml/badge.svg)](https://github.com/sapientpants/sonarqube-mcp-server/actions/workflows/main.yml)
+[![Main](https://github.com/sapientpants/sonarqube-mcp-server/actions/workflows/main.yml/badge.svg)](https://github.com/sapientpants/sonarqube-mcp-server/actions/workflows/main.yml)
 [![Quality Gate Status](https://sonarcloud.io/api/project_badges/measure?project=sonarqube-mcp-server&metric=alert_status)](https://sonarcloud.io/summary/new_code?id=sonarqube-mcp-server)
 [![Bugs](https://sonarcloud.io/api/project_badges/measure?project=sonarqube-mcp-server&metric=bugs)](https://sonarcloud.io/summary/new_code?id=sonarqube-mcp-server)
 [![Code Smells](https://sonarcloud.io/api/project_badges/measure?project=sonarqube-mcp-server&metric=code_smells)](https://sonarcloud.io/summary/new_code?id=sonarqube-mcp-server)