Documentation and search engines

[Gedweb]

After latest changes on doc.rust-lang.org, some documentation pages has been moved.
Search engins will give wrong results for a while we have pages like this https://doc.rust-lang.org/book/compiler-plugins.html with direct 200 OK HTTP-status.
So need a send 301 Moved Permanently for a search reindexation.

[frewsxcv]

#42632

[Gedweb]

Second edition is partly incomplete.
A showing "choose page" is ugly way, if you look from SEO side - search engins can't handle it. We loose useful links on search positions and break brains of new programmers, which start learn Rust.

[steveklabnik]

The book has its own repo, and has this issue already: rust-lang/book#760

Closing in favor of that, thank you!