Fix calendar name

Author: d-frey

cpp-aachen.ics

@@ -2,7 +2,7 @@ BEGIN:VCALENDAR
 VERSION:2.0
 CALSCALE:GREGORIAN
 PRODID:-//SabreDAV//SabreDAV//EN
-X-WR-CALNAME:C++ User Group (markus)
+X-WR-CALNAME:C++ User Group Aachen
 X-APPLE-CALENDAR-COLOR:#d3a967
 REFRESH-INTERVAL;VALUE=DURATION:PT4H
 X-PUBLISHED-TTL:PT4H