docs: format

Author: posva

packages/docs/cookbook/testing.md

@@ -127,11 +127,13 @@ Since the store is named _"counter"_, you need to add a matching object to `init
 // somewhere in your test
 const wrapper = mount(Counter, {
   global: {
-    plugins: [createTestingPinia({
-      initialState: {
-        counter: { n: 20 }, // start the counter at 20 instead of 0
-      }
-    })],
+    plugins: [
+      createTestingPinia({
+        initialState: {
+          counter: { n: 20 }, // start the counter at 20 instead of 0
+        },
+      }),
+    ],
   },
 })