add link to codeql static analysis

README.md

@@ -7,6 +7,7 @@ If you find rdfind useful, [drop me an email](mailto:__please_remove_this_antisp
 ## Continuous integration status
 | Status (main) | Status (devel)| Description
 |-------------|-------------|------------------
+| [issues list](https://github.com/pauldreik/rdfind/security/code-scanning?query=is%3Aopen+branch%3Amain) | [issues list](https://github.com/pauldreik/rdfind/security/code-scanning?query=is%3Aopen+branch%3Adevel) | Static analyzer (codeql) |
 | [![build status](https://github.com/pauldreik/rdfind/actions/workflows/cppcheck.yml/badge.svg?branch=main)](https://github.com/pauldreik/rdfind/actions/workflows/cppcheck.yml?query=branch%3Amain) | [![build status](https://github.com/pauldreik/rdfind/actions/workflows/cppcheck.yml/badge.svg?branch=devel)](https://github.com/pauldreik/rdfind/actions/workflows/cppcheck.yml?query=branch%3Adevel) | Static analyzer (cppcheck)|
 | [![build status](https://github.com/pauldreik/rdfind/actions/workflows/ubuntu-default.yml/badge.svg?branch=main)](https://github.com/pauldreik/rdfind/actions/workflows/ubuntu-default.yml?query=branch%3Amain) | [![build status](https://github.com/pauldreik/rdfind/actions/workflows/ubuntu-default.yml/badge.svg?branch=devel)](https://github.com/pauldreik/rdfind/actions/workflows/ubuntu-default.yml?query=branch%3Adevel) | Builds and tests on Ubuntu 20.04 and 22.04 with the default compiler and settings |
 |  [![build status](https://github.com/pauldreik/rdfind/actions/workflows/mac.yml/badge.svg?branch=main)](https://github.com/pauldreik/rdfind/actions/workflows/mac.yml?query=branch%3Amain) | [![build status](https://github.com/pauldreik/rdfind/actions/workflows/mac.yml/badge.svg?branch=devel)](https://github.com/pauldreik/rdfind/actions/workflows/mac.yml?query=branch%3Adevel) | Compiles on Mac OS X|