Merge pull request #239 from radixdlt/add-storybook-link

docs: add storybook link in CB's README.md

Author: dawidsowardx

packages/connect-button/README.md

@@ -11,6 +11,7 @@ It appears as a consistent, Radix-branded UI element that helps users identify y
   - [Getting started](#getting-started)
   - [Setting properties programmatically](#setting-properties-programmatically)
   - [Events](#events)
+- [Playground](#playground)
 - [License](#license)
 
 # Usage
@@ -107,6 +108,10 @@ type ConnectButtonEvents = {
 - onShowPopover - triggers when users clicks on radix button and popover is being shown
 - onUpdateSharedAccounts - triggers when users clicks on "Update Account Sharing" button
 
+# Playground
+
+You can play around with different settings using our storybook instance. Visit [connect-button-storybook.radixdlt.com](https://connect-button-storybook.radixdlt.com/) to easily experiment with Connect Button.
+
 # License
 
 The √ Connect Button binaries are licensed under the [Radix Software EULA](http://www.radixdlt.com/terms/genericEULA)