Update workflow and README

Author: coderphonui

.github/workflows/maven.yml

@@ -29,7 +29,10 @@ jobs:
         cache: maven
     - name: Build with Maven
       run: mvn -B package --file pom.xml
-
+    - name: Generate JaCoCo Badge
+      uses: cicirello/jacoco-badge-generator@v2
+      with:
+        generate-branches-badge: true
     # Optional: Uploads the full dependency graph to GitHub to improve the quality of Dependabot alerts this repository can receive
     - name: Update dependency graph
       uses: advanced-security/maven-dependency-submission-action@571e99aab1055c2e71a1e2309b9691de18d6b7d6

README.md

@@ -1,5 +1,8 @@
 # LLM JSON auto repair
 
+![Build](https://github.com/coderphonui/jsonautorepair/actions/workflows/maven.yml/badge.svg)
+[![Coverage](.github/badges/jacoco.svg)](https://github.com/coderphonui/jsonautorepair/actions/workflows/maven.yml)
+
 A tiny library to repair JSON string output from LLM. It fixes most of the common issues from the LLM JSON output, eg:
 
 * Remove the ```json``` code block