this day I'm working search results template.
But first I updated whoosh to 2.0.0 and start working on highlighting, I found what whoosh can't highlight fields with MultiFilter() and filed bug on issue tracker https://bitbucket.org/mchaput/whoosh/issue/156/with-patch-highlighting-fails-for
Also, I made temporary fix(see in attachment) for that and push it to my repo.
After that I'm start working on highlighting, but I found results showing like html markup instead of normal formatting.