Note that i couldn't update the screenshots in the verification-windows-beginner.html guide, since i don't have a windows environment yet. So i added a note warning about the outdated screenshots. I will open an issue about adding new screenshots.

in verification-allos-advanced.html i updated the process adding @binaryFate's key and firgerprints, so a review of this PR from him would be appreciated.

Closes #1061 (closed)