Update books

rust-lang · m-ou-se · Apr 23, 2021 · Apr 24, 2021 · Apr 24, 2021 · Apr 24, 2021
commit 8dc09e1d040f7ce2a376ccdfd6f9cc103b5be4cc
diff --git a/src/doc/book b/src/doc/book
diff --git a/src/doc/reference b/src/doc/reference
diff --git a/src/doc/rust-by-example b/src/doc/rust-by-example
diff --git a/src/doc/rustc-dev-guide b/src/doc/rustc-dev-guide
+2 −2		src/expressions/closure-expr.md
+2 −2		src/expressions/if-expr.md
+1 −2		src/expressions/loop-expr.md
+1 −4		src/expressions/match-expr.md
+12 −6		src/identifiers.md
+2 −2		src/items/functions.md
+1 −1		src/items/traits.md
+1 −0		src/keywords.md
+8 −7		src/linkage.md
+2 −2		src/macros-by-example.md
+61 −0		src/patterns.md
+2 −2		src/statements.md
+1 −1		src/hello/print/print_display.md
+3 −3		src/scope/lifetime/trait.md
+9 −4		src/types/cast.md
+2 −1		.github/workflows/ci.yml
+1 −0		.github/workflows/date-check.yml
+1 −1		README.md
+1 −1		ci/linkcheck.sh
+1 −0		src/appendix/bibliography.md
+6 −13		src/building/how-to-build-and-run.md
+74 −1		src/building/suggested.md
+60 −0		src/git.md
+5 −0		src/mir/debugging.md
+270 −0		src/mir/mir_cfg.svg