Ad cran-comments.md

.Rbuildignore

@@ -9,3 +9,4 @@
 ^\.gitlab-ci\.yml$
 ^data-raw$
 ^images$
+^cran-comments\.md$

cran-comments.md

+## Test environments
+* local Windows 10 install, R 4.0.2
+* Debian GNU/Linux 9 on GitLab CI, R 3.5.1
+* Debian GNU/Linux 10 on GitLab CI, R 3.6.3
+* Ubuntu 20.04 on GitLab CI, R 4.0.2
+* Ubuntu 20.04 on GitLab CI, R devel (2020-07-21 r78893)
+
+
+## R CMD check results
+There were no ERRORs, WARNINGs, or NOTEs. 
+
+
+## Downstream dependencies
+There are no downstream dependencies yet.