docs: Update React Native docs with known errors (#292)

Signed-off-by: Jakub Koci <jakub.koci@gmail.com>

README.md

@@ -110,8 +110,44 @@ const config = {
 const agent = new Agent(config)
 ```
 
+If you're using TypeScript in your React Native project you need to install `indy-sdk` types with alias:
+
+```
+yarn add -D @types/rn-indy-sdk@npm:@types/indy-sdk
+```
+
 For an example react native app that makes use of the framework see [Aries Mobile Agent React Native](https://github.com/animo/aries-mobile-agent-react-native.git)
 
+#### Known Errors
+
+Error:
+
+```
+[Error: crypto.getRandomValues() not supported. See https://github.com/uuidjs/uuid#getrandomvalues-not-supported]
+```
+
+Problem: We're using `uuid` npm package which requires `react-native-get-random-values`.
+
+Solution: Install [react-native-get-random-values](https://github.com/uuidjs/uuid#getrandomvalues-not-supported) and import it in your `index.js` file.
+
+```js
+import 'react-native-get-random-values'
+```
+
+Error:
+
+```
+TypeError: Symbol.asyncIterator is not defined.
+```
+
+Problem: Running React Native with Hermes JS engine doesn't support `for-await-of`.
+
+Solution: Install [@azure/core-asynciterator-polyfill](https://github.com/Azure/azure-sdk-for-js/tree/master/sdk/core/core-asynciterator-polyfill) and import it in your `index.js` file.
+
+```js
+import '@azure/core-asynciterator-polyfill'
+```
+
 ### Logs
 
 To enable logging inside the framework a logger must be passed to the agent config. A simple `ConsoleLogger` can be imported from the framework, for more advanced use cases the `ILogger` interface can implemented. See [`TestLogger`](./src/__tests__/logger.ts) for a more advanced example.