use AND (and not OR) for searching multiple terms

[tshepang]

Docs: https://rust-lang.github.io/mdBook/format/configuration/renderers.html#outputhtmlsearch

Discussion #t-internal-sites > [Forge] `[output.html.search] use-boolean-and`:

With boolean-or, it can get a little overwhelmed and show some pretty irrelevant results when using generic words. Sometimes it can be useful if it shows pages that don't necessarily include every word of the search, but sometimes it just generates a lot of noise. It's a bit of a toss-up since it is hard to measure how effective it is for users.

Let's give AND approach a shot.

[rustbot]

r? @jieyouxu

rustbot has assigned @jieyouxu.
They will have a look at your PR within the next two weeks and either review your PR or reassign to another reviewer.

Use r? to explicitly pick a reviewer

Why was this reviewer chosen?

The reviewer was selected based on:

• Fallback group: @Mark-Simulacrum, internal-sites
• @Mark-Simulacrum, internal-sites expanded to Mark-Simulacrum, Urgau, ehuss, jieyouxu
• Random selection from Mark-Simulacrum, Urgau, ehuss, jieyouxu

[jieyouxu]

Let's give this a shot, thanks

View changes since this review