head tag fixes in theme

Author: tailwiinder

docs/theme.config.tsx

@@ -25,6 +25,18 @@ const config: DocsThemeConfig = {
     text: 'NativeCN',
   },
   darkMode: true,
+  head: (
+    <>
+      <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+      <meta property="og:title" content="NativeCN" />
+      <meta property="og:description" content="Beautiful UI Components for React Native" />
+    </>
+  ),
+  useNextSeoProps() {
+    return {
+      titleTemplate: '%s',
+    };
+  },
 };
 
 export default config;