Update upgrade_to_openpanel_enterprise_and-activate_license.md

documentation/docs/articles/license/upgrade_to_openpanel_enterprise_and-activate_license.md

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 # Upgrading to OpenPanel Enterprise and activating License
 
+OpenPanel is available in two editions:
 
-### Purchase License
+- **Community** - a free hosting control panel for Debian and Ubuntu OS, suitable for VPS and private use.
+- **Enterprise** - offers advanced features for user isolation and management, suitable for web hosting providers.
 
-### Add License Key
+More information: [OpenPanel Community VS Enterprise edition](https://openpanel.co/beta)
 
+## Purchase License
+
+To purchase a license for the OpenPanel Enterprise edition [click here](https://my.openpanel.co/cart.php?a=add&pid=1).
+
+After payment, license key is automatically issued and you will see it under the Services page:
+
+![license key](https://i.postimg.cc/0ybCkTQX/2024-08-04-15-40.png)
+
+## Add License Key
+
+### To existing installation:
+
+- From OpenAdmin:
+  If you already have OpenPanel Community edition installed, navigate to **OpenAdmin > Try Enterprise** and add the key into the form:
+  ![add license key](https://i.postimg.cc/P5VTZwdr/2024-08-04-15-46.png)
+
+- From terminal:
+  ```bash
+  opencli license enterprise-XXX
+  ```
+  Replace `enterprise-XXX` with your license key.
+  ![opencli license](https://i.imgur.com/rxqjFsy.png)
+
+### To new installation:
+
+If you will be installing OpenPanel Enterprise on another server, copy the install command from your service page and paste it into new server:
+
+![install command](https://i.postimg.cc/3xFDH9jf/2024-08-04-15-43.png)