add user guide videos to README

README.md

@@ -2,7 +2,7 @@
 
 <img alt="logo" align="left" height="350" src="./assets/rent-check-logo.png" width="350"/>
 
-Rent Check is an application that serves as a convenient checklist designed to simplify your apartment rental experience.
+[Rent Check](https://rent-check-411212.web.app/) is an application that serves as a convenient checklist designed to simplify your apartment rental experience.
 
 The app streamlines apartment choice by categorizing check items, allowing you to create groups within each flat based on necessity (_must-have_ and _optional_), room-specific criteria (_bathroom_ and _bedroom_), and any other preferences you desire.
 
@@ -29,6 +29,8 @@ Note that currently, our app supports only one authentication method (refer to B
 
 Click the `+` button to add a flat. Provide the mandatory address and, optionally, a title and description. Upon completion, you'll be redirected to a dedicated page for the created flat.
 
+![add-flat](./assets/videos/add-flat.MP4)
+
 ### Add Group
 
 Click the `+` button to add a group. Next, either assign a new unique title or select from existing groups – those you currently have or had across all flats. As a result, a new empty group is created.