Rename config.curly-quotes to config.smart-punctuation

[virtualritz]

See #1936.

• Renamed config.curly-quotes to config.smart-punctuation.
• Ran rustfmt.
• Made line length consistently 80 characters in renderer.md.

[ehuss]

Hi! Thanks for the PR!

Can you drop the commit that re-wraps the file? I have been moving things in the opposite direction to instead use semantic line breaks which can make it easier to review changes.

Also, can you keep the original curly_quotes field, and emit a warning that it is deprecated and tell the user what the new field name is?

Finally, can you add a test to rendered_output.rs to verify the behavior when the value is and isn't set?

@rustbot author

[virtualritz]

Will do, but I will have to find some time for this.

[ehuss]

I've pushed PR #2327 to move this forward. Thanks!