More introductory documentation (#520)

* Add a comment to .rustfmt.toml explaning why it's here.

* Use `<details>` for specialized information in README.md.

* Describe a more elaborate issue-labelling system.
This commit is contained in:
Dan Gohman
2018-09-21 20:16:55 -07:00
committed by GitHub
parent 8d6a8e9069
commit ea0c196c11
3 changed files with 32 additions and 14 deletions

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# This file tells tools we use rustfmt. We use the default settings.