It looks like there are currently 2 notes on the checks that CRAN makes:
- It has found potential typographical errors in your
* checking CRAN incoming feasibility ... NOTE
Maintainer: 'Ignacio Martinez <firstname.lastname@example.org>'
Possibly mis-spelled words in DESCRIPTION:
The Description field contains
account from https://www.mailgun.com .
Please enclose URLs in angle brackets (<...>).
LICENSE file is not referenced in your
* checking top-level files ... NOTE
is not mentioned in the DESCRIPTION file.
As far as I can see, these are the only issues.
It may be worth (if you haven't already) reading the releasing section of the R Packages book.