Fix typo in description (found by codespell)
Fix typo in description (found by codespell)

Fix also a grammar issue in the same sentence.

Signed-off-by: Stefan Weil <8d4c780fcfdc41841e5070f4c43da8958ba6aec0@weilnetz.de>

infolis/infolis-web,infolis/infolis-web,infolis/infolis-web