Update README.md

Author: revolunet

README.md

@@ -17,7 +17,7 @@ import { OrbitProvider } from "react-orbitdb";
 const App = () => <OrbitProvider>...</OrbitProvider>;
 ```
 
-- `config` prop with ipfs configuration can be passer to the provider. (see the [default](./src/ipfs-config.js))
+- `config` prop with [ipfs configuration](https://github.com/ipfs/js-ipfs/blob/master/docs/CONFIG.md) can be passed to the provider. (see the [default](./src/ipfs-config.js))
 
 ## Hooks