Add a "Join the Community" area

[Ly0n]

We need a place where our next public community call meeting are visible for the public to join. Theirfor is would suggest we add an open source web calender to the website like this one: https://fullcalendar.io/

We could add this to the "contributing" page at the buttom with the heading "Join the community".

[Ly0n]

I was only able to integrate a GoogleCalender with an Iframe. All the open source solutions I found need to be self-hosted. If nobody else knows a better solution I would integrate the calender at the end of the contributing.md with some welcoming text that still needs to be defined.

Here a screenshot of a local build.

[Ly0n]

The advantage of this variant is also that it is directly compatible with the other LFE projects and we can also enter our public date in the common LFE calender.