use Additional_repositories for taxadb

Author: cboettig

DESCRIPTION

@@ -14,6 +14,7 @@ Description: Provides access to phyloinformatic data in 'NeXML' format.  The
     with 'ape' objects.
 URL: https://docs.ropensci.org/RNeXML, https://github.com/ropensci/RNeXML
 BugReports: https://github.com/ropensci/RNeXML/issues
+Additional_repositories: https://cboettig.github.io/drat/
 License: BSD_3_clause + file LICENSE
 VignetteBuilder: knitr
 Suggests:

cran-comments.md

@@ -1,9 +1,6 @@
 Dear CRAN maintainers,
 
-This update addresses several minor issues and feature requests, as detailed in NEWS.md. 
-This package shows two notes, one indicating that I am the maintainer, the other noting that this package
-has one suggested dependency on a non-mainstream repository, which is used
-to illustrate an additional feature in one of vignettes, when available.  (This is not a new suggested dependency, it is already listed in the current CRAN version as well.)
+This update addresses several minor issues and feature requests, as detailed in NEWS.md. This package shows one note, that one suggested dependency on a non-mainstream repository, which is used to illustrate an additional feature in one of vignettes, when available (taxadb).  This is not a new suggested dependency, it is already listed in the current CRAN version as well.  I have now listed an Additional_repository field for where to install `taxadb`.  
 
 Cheers,