Change URL order in DESCRIPTION to be pkgdown-friendly

[IndrajeetPatil]

• On main:

downlit:::autolink_curly("{lintr}")
#> "<a href='https://github.com/r-lib/lintr'>lintr</a>"

• On current branch:

downlit:::autolink_curly("{lintr}")
#> "<a href='https://lintr.r-lib.org'>lintr</a>"

[MichaelChirico]

Confirming the real workhorse here:

https://github.com/r-lib/downlit/blob/c0a8f645e21a03e258b7c1684901f84279cc706a/R/link.R#L338-L345
https://github.com/r-lib/downlit/blob/c0a8f645e21a03e258b7c1684901f84279cc706a/R/metadata.R#L98

I.e., it literally pulls the 1st entry from the URL key in DCF.

I was wondering if there might be a more specific key we could use instead, e.g. Config/pkgdown/url or something.

[MichaelChirico]

Nice find!