Merge pull request #24 from portto/docs/update_readme

Update README

Author: clement.l

README.md

@@ -15,6 +15,8 @@ Currently support
 * Avalanche
 * More blockchains are coming soon
 
+> For Flow, it's recommended to use [fcl](https://github.com/portto/fcl-android). Check the [documents](https://docs.blocto.app/blocto-sdk/android-sdk/flow) for more info.
+
 ## Installation
 
 Add the dependency below to your module's `build.gradle` file
@@ -46,6 +48,7 @@ object Config {
 
 [Jack](mailto:jack.lai@portto.com), [Kihon](mailto:kihon@portto.com)
 
+
 ## License
 
 BloctoSDK is available under the MIT license. See the LICENSE file for more info.