Update AndroidManifest.xml (#268)

Fix build error:
Execution failed for task ':app:processDebugManifest'.
> Manifest merger failed with multiple errors, see logs

app/src/main/AndroidManifest.xml

@@ -7,7 +7,7 @@
     <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
 
     <uses-feature android:name="android.hardware.camera.autofocus" />
-    <uses-feature android:glEsVerstion="0x00020000" android:required="true" />
+    <uses-feature android:glEsVersion="0x00020000" android:required="true" />
 
     <application
         android:allowBackup="true"