change text in worker-compensation guide

[martinkrung]

https://dxdao.eth.link/#/worker-compensation

Standard is, but maybe double check with @pulp and doku: 2 weeks trial, at least 40h. Payed 50%. This is not part of the monthly payment. Then the first two months is 80%.

Now it looks like this:

Also change this, DXD is calculated at ATH at coingecko

ping me on the pull request or commit if I should double-check.