Suggestion: add react-native-vector-icons in readme / 建议：在自述文件中添加react-native-vector-icons

[JimTeva]

I was running some issues displaying the icons with the react-native Image component, then I saw that react-native-vector-icons was implemented in the example, I tried it and it worked.
Because react-native Image component wasn't working for me with react-native 0.61.5, I would advise to add react-native-vector-icons as a dependency for this library in the readme description as a fix in case the first Image component doesn't work.
I would also indicate that the font used in the example is Ionicons and suggest the following import

import Icon from 'react-native-vector-icons/Ionicons';

--------------- translated by Google -->

我正在运行一些问题，以显示带有react-native Image组件的图标，然后看到示例中实现了react-native-vector-icons，我尝试了一下并成功了。
因为react-native Image组件不适用于react-native 0.61.5，所以我建议在自述文件中添加react-native-vector-icons作为此库的依赖项，以解决第一个Image问题 组件不起作用。
我还要指出示例中使用的字体是Ionicons并建议以下导入

import Icon from 'react-native-vector-icons/Ionicons';

[Wujikang]

@JimTeva

I have received your feedback, thank you very much, I am currently busy with other work, I will add this information later, if possible, you can also provide a merge request

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已经收到你的反馈，非常感谢提出，目前我正在忙于其他工作，后续会添加该信息，如果可以，你也可以提供合并请求