added ci

.github/workflows/testing.yml

@@ -0,0 +1,23 @@
+name: Testing
+on: [push, pull_request]
+jobs:
+  checkformat:
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checking json format
+      run: |
+        sudo apt install jq
+        settings_files=$(find -name "*.json")
+        has_error=0
+        for file in $settings_files; do
+            echo "CHECKING '$file'"
+            jq -c . $file >/dev/null 2>&1
+            if [[ $? != "0" ]]; then
+                echo " > FAILED"
+                has_error=1
+            else
+                echo " > SUCCESS"
+            fi
+        done
+        exit $has_error        
+