Rollup merge of rust-lang#78971 - ehuss:update-books, r=ehuss

Update books

## nomicon

8 commits in 69333eddb1de92fd17e272ce4677cc983d3bd71d..23c49f1d5ce4720bc5b7e3a920f47eccc8da6b63
2020-10-17 15:44:12 -0700 to 2020-11-05 13:30:53 +0900
-  (rust-lang/nomicon#238)
- Some tweaks (rust-lang/nomicon#244)
-  (rust-lang/nomicon#245)
- Update atomics.md (rust-lang/nomicon#224)
- Update send-and-sync.md (rust-lang/nomicon#187)
- fix a typo (rust-lang/nomicon#231)
- Improve formatting of "Transmutes" chapter (rust-lang/nomicon#242)
- Merge pull request rust-lang/nomicon#241 from simon-lammes/patch-1

## reference

4 commits in 10c16caebe475d0d11bec0531b95d7697856c13c..a7de763c213292f5b44bf10acb87ffa38724814d
2020-10-25 20:51:26 -0700 to 2020-11-11 19:13:21 -0800
- Referencify tuples (rust-lang/reference#899)
- Mention Box's partial field moves (rust-lang/reference#837)
- Enable triagebot (rust-lang/reference#862)
- Update deprecated GitHub Actions commands. (rust-lang/reference#896)

## rust-by-example

1 commits in 99eafee0cb14e6ec641bf02a69d7b30f6058349a..1886fda6981b723e4de637074455558f8bc1e83c
2020-10-21 14:21:55 -0300 to 2020-10-28 13:46:54 -0500
- Remove incorrect "lambda" terminology

## edition-guide

1 commits in 7bc9b7a5e800f79df62947cb7d566fd2fbaf19fe..b91a9a881ee007c12e74e844460ec407cf07a50f
2020-10-23 18:31:23 -0500 to 2020-11-02 11:02:03 -0600
- Clarify slice patterns example (rust-lang/edition-guide#223)