update README.md to reflect current reality

Author: fkr

README.md

@@ -1,6 +1,6 @@
 # Public SCS community calendar
 This repository contains various `yaml` files to announce public events, meetings and other interesting happenings of 
-our [Sovereign Cloud Stack](https://scs.community) community.
+our [Sovereign Cloud Stack](https://sovereigncloudstack.org) community.
 
 ## Import public SCS community calendar
 The public calendar is automatically published at <https://sovereigncloudstack.github.io/calendar/scs.ics>. We recommend importing the calendar with an iCalendar client like [Thunderbird](https://support.mozilla.org/en-US/kb/creating-new-calendars#w_on-the-network-connect-to-your-online-calendars).
@@ -18,11 +18,6 @@ pip install ics==0.8.0.dev0
 pip install yaml2ics==0.2
 pip install pyyaml
 ```
-The `yml` file for our regular community calls is automatically generated by `communitycall.py`. You need to call this script prior to executing `yaml2ics` or the calendar build will fail (due to the otherwise missing file `communitycall.yml`). To do so, call
-
-```
-python communitycall.py
-```
 
 and afterwards, call `yaml2ics` on `main.yml` (or any of the sub-calendars):