docs: Add react-native-vector-icons info for rn0.6.0 (react-native-el…

…ements#2037)

For react-native versions from 0.6.0 and above, linking is done automatically and shouldn't be done manually.

docs/getting_started.md

@@ -73,6 +73,8 @@ npm i --save react-native-vector-icons
 react-native link react-native-vector-icons
 ```
 
+_Manual linking of react-native-vector-icons is not necessary if you're using [email protected] or above since it is done automatically. This will throw an error though it won't prevent the application from running. To fix this you'll simply have to run `react-native unlink react-native-vector-icons` and the process will run as expected._
+
 _If you have any issues installing react-native-vector-icons, check out their
 installation guide
 [here](https://github.com/oblador/react-native-vector-icons#installation) or