add prettierrc

Author: Carl-Hugo

.prettierrc

@@ -0,0 +1,14 @@
+{
+  "$schema": "http://json.schemastore.org/prettierrc",
+  "tabWidth": 4,
+  "printWidth": 140,
+  "singleQuote": true,
+  "overrides": [
+    {
+      "files": ["*.yaml", "*.yml"],
+      "options": {
+        "tabWidth": 2
+      }
+    }
+  ]
+}