Link widgets web app in README

Author: bardonadam

README.md

@@ -572,7 +572,7 @@ activitysmith.notifications.send(
   <img src="https://cdn.activitysmith.com/features/lock-screen-widgets.png" alt="Lock screen widgets" width="680" />
 </p>
 
-ActivitySmith lets you display any value on your Lock Screen with widgets - SaaS metrics, revenue, signups, uptime, habits, or anything else you want to track. Create a metric in the web app, then update the metric value using our API, add a widget to your lock screen and it will fetch the latest update automatically.
+ActivitySmith lets you display any value on your Lock Screen with widgets - SaaS metrics, revenue, signups, uptime, habits, or anything else you want to track. Create a metric in the [web app](https://activitysmith.com/app/widgets), then update the metric value using our API, add a widget to your lock screen and it will fetch the latest update automatically.
 
 <p align="center">
   <img src="https://cdn.activitysmith.com/features/create-widget-metric.png" alt="Create widget metric" width="680" />