Add CodeQL badge (#976)

Show CodeQL status at Readme

Author: anaiberta

README.md

@@ -1,11 +1,11 @@
 # GeneXus Standard Classes for .NET and .NET Framework
 GeneXus Standard Classes for .NET and .NET Framework generators.
 
-## Build status
-| Branch | Status
-|---|---
-|master|[![](https://github.com/genexuslabs/dotnetclasses/workflows/Build/badge.svg?branch=master)](https://github.com/genexuslabs/dotnetclasses/actions?query=workflow%3ABuild+branch%3Amaster)
-|beta|[![](https://github.com/genexuslabs/dotnetclasses/workflows/Build/badge.svg?branch=beta)](https://github.com/genexuslabs/dotnetclasses/actions?query=workflow%3ABuild+branch%3Abeta)
+## Repo status
+| Branch | Build | Security
+|---|---|---
+|master|[![](https://github.com/genexuslabs/dotnetclasses/workflows/Build/badge.svg?branch=master)](https://github.com/genexuslabs/dotnetclasses/actions?query=workflow%3ABuild+branch%3Amaster)|[![CodeQL](https://github.com/genexuslabs/DotNetClasses/actions/workflows/codeql-analysis.yml/badge.svg)](https://github.com/genexuslabs/DotNetClasses/actions/workflows/codeql-analysis.yml)
+|beta|[![](https://github.com/genexuslabs/dotnetclasses/workflows/Build/badge.svg?branch=beta)](https://github.com/genexuslabs/dotnetclasses/actions?query=workflow%3ABuild+branch%3Abeta)|[![CodeQL](https://github.com/genexuslabs/DotNetClasses/actions/workflows/codeql-analysis.yml/badge.svg?branch=beta)](https://github.com/genexuslabs/DotNetClasses/actions/workflows/codeql-analysis.yml)
 
 ## Modules