Update README.md

Author: TBotSoftware

README.md

@@ -1,2 +1,20 @@
-# SharePoint-Online-Automatic-Custom-Script-Activation
-This PowerShell script enables the automatic activation of custom scripts on SharePoint Online pages.
+## ⚠️ Requirements
+
+To run this script, install PowerShell 7 with the SharePoint Online Module.
+
+## 📃 Preparations
+
+First, a tenant app must be created in the Entra admin centre with the following permissions:
+
+```bash
+SharePointTenantSettings.ReadWrite.All
+Sites.ReadWrite.All
+User.Read
+Sites.FullControl.All
+Sites.Manage.All
+```
+
+You will need the client-id and the client-secret to run the script.
+Replace <CLIENTID> and <CLIENTSECRET> in this script with your clientid and clientsecret.
+
+To run this script automatically every day, create a task in the windows task scheduler and link the script.