update DESCRIPTION to make cran happier. Update cran-comments

Author: tzimiskes

DESCRIPTION

@@ -10,7 +10,7 @@ Description: Classical methods for combining summary data from genome-wide
     association studies (GWAS) only use marginal genetic effects and power can
     be compromised in the presence of heterogeneity. 'subgxe' is a R package
     that implements p-value assisted subset testing for association (pASTA),
-    a method developed by Yu et al. (2019) \doi{10.1159/000496867}. pASTA
+    a method developed by Yu et al. (2019) <doi:10.1159/000496867>. pASTA
     generalizes association analysis based on subsets by incorporating
     gene-environment interactions into the testing procedure.
 License: GPL-3

cran-comments.md

@@ -1,21 +1,13 @@
 ## Resubmission
 This is a resubmission. CRAN comments were:
 
-> Thanks, please write package names, software names and API names in
-> single quotes (e.g. 'subgxe') in your Description.
->
-> If there are references describing the methods in your package, please
-> add these in the Description field of your DESCRIPTION file in the form
+> Please write the reference in the form:
 > authors (year) \<doi:...\>
-> authors (year) \<arXiv:...\>
-> authors (year, ISBN:...)
-> with no space after 'doi:', 'arXiv:' and angle brackets for auto-linking.
+> with no space after 'doi:' and angle brackets for auto-linking.
 >
 > Please fix and resubmit.
 
-I have single quoted the package name in the DESCRIPTION, and added a
-citation + DOI to the relevant methods paper.
-
+Done.
 
 ## Test environments
 * Ubuntu 18.04.2 LTS : R 3.6.0, R-Devel 2019-06-12 r76696
@@ -24,7 +16,14 @@ citation + DOI to the relevant methods paper.
 There were no ERRORs or WARNINGs.
 
 There was 1 NOTE:
-* checking CRAN incoming feasibility ... NOTE
-  Maintainer: ‘Alexander Rix <alexrix@umich.edu>’
+Maintainer: ‘Alexander Rix <alexrix@umich.edu>’
+
+New submission
+
+Found the following (possibly) invalid DOIs:
+  DOI: 10.1159/000496867
+    From: DESCRIPTION
+    Status: Forbidden
+    Message: 403
 
-  New submission
+I'm not sure why the there is a 403 error, but the DOI is valid