Add documentation badge for MkDocs Material

Author: nenuadrian

README.md

@@ -2,6 +2,7 @@
 
 [![CMake on a single platform](https://github.com/nenuadrian/c-java-native-interface-agent-stack-trace-heap-capture/actions/workflows/cmake-single-platform.yml/badge.svg)](https://github.com/nenuadrian/c-java-native-interface-agent-stack-trace-heap-capture/actions/workflows/cmake-single-platform.yml)
 [![LaTeX Build](https://github.com/nenuadrian/bsc-dissertation-c-java-native-interface-agent-stack-trace-heap-capture/actions/workflows/main.yml/badge.svg)](https://github.com/nenuadrian/bsc-dissertation-c-java-native-interface-agent-stack-trace-heap-capture/actions/workflows/main.yml)
+[![Docs (MkDocs Material)](https://github.com/nenuadrian/bsc-dissertation-c-java-native-interface-agent-stack-trace-heap-capture/actions/workflows/docs.yml/badge.svg)](https://github.com/nenuadrian/bsc-dissertation-c-java-native-interface-agent-stack-trace-heap-capture/actions/workflows/docs.yml)
 
 ## Table of Contents