Edit multiple error code Markdown files

[pierwill]

Makes small edits to several error code files. Fixes some missing punctuation. Changes some wording, grammar, and formatting for clarity and readability.

Adds a link to the rustup book in E0658.

[rust-highfive]

r? @davidtwco

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[rust-log-analyzer]

The job mingw-check failed! Check out the build log: (web) (plain)

Click to see the possible cause of the failure (guessed by this bot)

configure: rust.channel         := nightly
configure: rust.debug-assertions := True
configure: llvm.assertions      := True
configure: dist.missing-tools   := True
configure: build.configure-args := ['--enable-sccache', '--disable-manage-submodu ...
configure: writing `config.toml` in current directory
configure: 
configure: run `python /checkout/x.py --help`
configure: 
---
Checking which error codes lack tests...
Found 435 error codes
Found 0 error codes with no tests
Done!
tidy error: /checkout/compiler/rustc_error_codes/src/error_codes/E0223.md:13: line longer than 80 chars
tidy error: /checkout/compiler/rustc_error_codes/src/error_codes/E0223.md:14: line longer than 80 chars
tidy error: /checkout/compiler/rustc_error_codes/src/error_codes/E0223.md:30: line longer than 80 chars
tidy error: /checkout/compiler/rustc_error_codes/src/error_codes/E0223.md:31: line longer than 80 chars
some tidy checks failed

command did not execute successfully: "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0-tools-bin/tidy" "/checkout" "/checkout/obj/build/x86_64-unknown-linux-gnu/stage0/bin/cargo" "/checkout/obj/build"
expected success, got: exit code: 1

[jonas-schievink]

Thanks, nice improvement!

@bors r+

[bors]

📌 Commit fabb332 has been approved by jonas-schievink