add json check

Author: RobTillaart

.github/workflows/jsoncheck.yml

@@ -0,0 +1,18 @@
+name: JSON check
+
+on:
+ push:
+ paths:
+ - '**.json'
+ pull_request:
+
+jobs:
+ test:
+ runs-on: ubuntu-latest
+ steps:
+ - uses: actions/checkout@v2
+ - name: json-syntax-check
+ uses: limitusus/json-syntax-check@v1
+ with:
+ pattern: "\\.json$"
+