Update README

README.md

@@ -1,7 +1,21 @@
 <h1 align="center">element119 | Sansec Composer Integrity Checker</h1>
 
 ## 📝 Features
-✔️ ...
+✔️ Identify potentially unwanted changes made to your project dependencies 
+
+✔️ Email notifications for packages that do not meet your desired integrity rating
+
+✔️ Supports Magento Open Source and Adobe Commerce
+
+✔️ Theme agnostic
+
+✔️ Dedicated module configuration section secured with custom admin user controls
+
+✔️ Seamless integration with Magento
+
+✔️ Built with developers and extensibility in mind to make customisations as easy as possible
+
+✔️ Installable via Composer
 
 <br/>
 
@@ -33,9 +47,41 @@ php bin/magento setup:upgrade
 <br/>
 
 ## 📚 User Guide
-...
+Configuration for this module can be found in the Magento admin under `Stores -> Settings -> Configuration -> Advanced
+-> System -> Sansec Composer Integrity Checker`
+
+<br>
+
+### Enable/Disable Scanning
+The Sansec Composer integrity scan can be disabled by setting this option to `No`. This is set to `Yes` by default.
+
+<br>
+
+### Report Integrity Failures by Email
+Allow emails to be sent when the Sansec Composer integrity checker finds discrepancies with your dependency files.
+This feature is disabled by default but can be enabled by setting this option to `Yes`. Once enabled you will be able
+to configure a threshold for dependency matching as well as a list of email address to notify when a failure occurs.
+
+<br>
+
+### Match Percentage Threshold for Notification
+This option is only considered when integrity failure emails are enabled. The value specified here determines the
+minimum match percentage required for the integrity checks to be considered successful. Admins will be notified of any
+packages that fail to meet this number. 
+
+<br>
+
+### Report Errors To
+This option is only considered when integrity failure emails are enabled. These dynamic rows allow you to configure a
+series of email addresses that should be notified when packages fail to meet the configured threshold.
 
 <br>
 
 ## 📸 Screenshots & GIFs
-Coming soon...
+### Admin Configuration
+![admin-config](https://user-images.githubusercontent.com/40261741/234102715-ed9e584e-da61-4a0f-9ae3-9f72bdde5524.png)
+
+<br>
+
+### Example Email Notification
+![email-example](https://user-images.githubusercontent.com/40261741/234102797-8937df5a-7312-4750-a9ca-09c2ad7379bd.png)