docs: add note for Windows installation, enable tabs support

docs/src/theme/MDXComponents.js

@@ -0,0 +1,13 @@
+import React from 'react';
+// Import the original mapper
+import MDXComponents from '@theme-original/MDXComponents';
+import Tabs from '@theme/Tabs';
+import TabItem from '@theme/TabItem';
+
+export default {
+    // Re-use the default mapping
+    ...MDXComponents,
+    // Global import the <Tabs> and <TabItem> components
+    Tabs,
+    TabItem,
+};