Fix v2 docs basePath (#1157)

docs/v2/index.html

 </body>
 <script>
     window.$docsify = {
-        repo: '',
-        basePath: 'https://raw.githubusercontent.com/react-native-navigation/tree/v2/docs/',
-        name: 'React Native Navigation',
+        basePath: 'https://raw.githubusercontent.com/wix/react-native-navigation/v2/docs/',
+        name: 'React Native Navigation v2',
         search: 'auto',
         themeColor: '#21B8F0',
         loadSidebar: true,