Update index.ts

Author: Titozzz

src/storageWrappers/index.ts

@@ -3,4 +3,5 @@ export * from './IonicStorageWrapper';
 export * from './LocalForageWrapper';
 export * from './LocalStorageWrapper';
 export * from './MMKVStorageWrapper';
+export * from './MMKVWrapper';
 export * from './SessionStorageWrapper';