ui-keyring package readme (#30)

packages/ui-keyring/README.md

@@ -1 +1,32 @@
 # @polkadot/ui-keyring
+
+A wrapper extending the base @polkadot/keyring interface for usage in the browser:
+Key management of user accounts including generation and retrieval of keyring pairs from a variety of input combinations.
+
+## Usage Example
+All module methods are exposed through a single default export.
+```
+import keyring from @polkadot/ui-keyring
+
+render () {
+  // encode publicKey to ss58 address
+  const address = keyring.encodeAddress(publicKey);
+
+  // get keyring pair from ss58 address
+  const pair = keyring.getPair(address);
+
+  // ask questions about that particular keyring pair
+  const isLocked = pair.isLocked();
+  const meta = pair.getMeta();
+
+  // save account from pair
+  keyring.saveAccount(pair, password);
+}
+```
+
+## Users
+Keyring is core to many polkadot/substrate apps.
+
+* [polkadot-js/apps](https://github.com/polkadot-js/apps)
+* [polkadot-js/api](https://github.com/polkadot-js/api)
+* [paritytech/substrate-light-ui](https://github.com/paritytech/substrate-light-ui)