In the Getting Started section of the docs, it is instructed to run react-native link react-native-vector-icons to link the vector icons with the app. React Native has removed the script react-native link from their CLI in their newest release (react-native-community/cli#1537).
As far as I understand, react-native-vector-icons have already updated their instruction on linking vector icons to the app (https://github.com/oblador/react-native-vector-icons#android). The docs should be updated to reflect them.
P.S, I'm a beginner to RN, please let me know if this is incorrect.