how to fix 2 issues on readthedocs

[ThomasWaldmann]

The guzzle sphinx theme wasn't updated for quite a while and because of that, last release 0.7.11 is a bit broken when used on readthedocs:

• warning about that one needs to enable javascript (although it is enabled). this is because jquery is not included anymore since a while within html generated by sphinx.
• missing search result preview (search works, but does not show highlighted content preview in the search result list)

I just wanted to link to a minimal fix I made for our "borg" theme, which is based on guzzle, so maybe someone can find it here and safe some hours of debugging / fixing:

https://github.com/borgbackup/borg/pull/8742