Erebus full release + website/documentaion release

Dear all,

Following out beta releases a few weeks ago, we are now ready for the first full release of the Erebus simulator for the 2021 international event!

Alongside the simulator, we are also releasing the simulator specific website including a documentation for new participants to get started with the simulator.

Full release of Erebus (v21.0.0)
Erebus website and documentation

Other relevant links:
Robot customisation tool
World generator
Erebus discord server
RCJ rescue community website

2021 TC