docs: add mocking tutorial

Author: MateuszRostkowski

docs/docs/data-management/MOCKING.md

@@ -0,0 +1,39 @@
+---
+id: mocking-data
+slug: /mocking-data
+title: Mocking data
+sidebar_position: 5
+tags:
+  - Backend
+  - MSW
+  - Mocking
+  - react-query
+  - axios
+  - react native
+  - orval
+description: Mocking - check how to mock data from backend and display it for users
+---
+
+# Mocking data
+
+This template uses [MSW](https://mswjs.io/docs) to mock data.
+
+Mocks are automatically generated with orval script - you can check [docs here](/api-connection)
+
+## Enabling mocks
+
+Go to `App.tsx` and change `ENABLE_MOCKED_SERVER` variable from false to true
+
+```tsx title="/App.tsx"
+// FIXME: moking not working on mobile app - follow this discussion https://github.com/mswjs/msw/issues/2026
+// error-line
+const ENABLE_MOCKED_SERVER = false
+// success-line
+const ENABLE_MOCKED_SERVER = true
+
+if (ENABLE_MOCKED_SERVER) {
+  startMockedServer()
+}
+```
+
+This will start msw server and api calls will be mocked!