README.md in ethereum_bip44-0.2.1 vs README.md in ethereum_bip44-0.2.2

@@ -3,9 +3,12 @@
 A ruby library to generate Ethereum addresses from a hierarchical deterministic wallet according to the [BIP44](https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki) standard.
 
 Internally it uses [money-tree](https://github.com/GemHQ/money-tree) for the deterministic private and public keys which allows to use many additional features like deriving Ethereum address from mnemonic backups (BIP32).
 
 Compatible with most hd wallet client like: imToken，MetaMask，Jaxx，MyEtherWallet，TREZOR，Exodus...
+
+Not only for Ethereum address, but also support bitcoin address. I will add more coin support to it.
+
 ## Installation
 
 Add this line to your application's Gemfile:
 
 ```ruby