diff --git a/README.md b/README.md
index 0aa480e..b3c6ae6 100644
--- a/README.md
+++ b/README.md
@@ -9,11 +9,27 @@ pip install -r requirements.txt
 ```
 
 
+calling the script will prompt for the CSV file.
+The output will be two files. One is the CSV file with the `.ics` extension, the other is a `event_uids.json` containing the unique identifier of each event line. 
+This will make updating the events via the CSV file easier. 
+
+# Key Features:
+- UID Persistence:
+Event UIDs are stored in a JSON file (event_uids.json).
+If the event key (based on description, date, start time, and location) exists, the same UID is reused.
+- LAST-MODIFIED Field:
+The last_modified timestamp is added to each event, ensuring updates are detected by calendar applications.
+- Resilience to Changes:
+If an event's details are modified in the CSV, the application recognizes it as an update due to the persistent UID.
+# Benefits:
+Consistent Updates: Calendar applications update events with matching UIDs rather than creating duplicates.
+Persistence: Even if the script is rerun, previously assigned UIDs remain consistent.
+
 
 ## example CSV file format
 
 ```
-Host;Description;Date;start time;end time;Location
+Gastgeber;Description;Date;start time;end time;Location
 Max Müller;Team Meeting;20.11.2024;10:00;11:00;Berlin
 Anna Löwe;Project Kickoff;21.11.2024;09:00;10:30;München
 ```