Add 'about: license' with a valid SPDX identifier
Add 'about: license' with a valid SPDX identifier

Signed-off-by: Håkon Wiik Ånes <758f716cde142606ec08e2d8cb07e5875a383d6e@gmail.com>

johanneskoester/staged-recipes,conda-forge/staged-recipes,ocefpaf/staged-recipes,jakirkham/staged-recipes,johanneskoester/staged-recipes,conda-forge/staged-recipes,jakirkham/staged-recipes,ocefpaf/staged-recipes