Update cran-comments

cran-comments.md

@@ -1,19 +1,14 @@
 ## Test environments
-* local ubuntu 18.04 install, R 3.6.2
+* local ubuntu 20.04 install, R 4.0.2
 * ubuntu 16.04 (on GitHub actions), R 4.0.0, R 3.6.3, R 3.5.3
-* ubuntu 16.04 (on R-hub), R 4.0.0
-* fedora (on R-hub), R-devel
 * macOS (on GitHub actions), R-devel, R 4.0.0
 * windows (on GitHub actions), R 4.0.0
-* windows (on R-hub), R-devel
 * win-builder, R-devel, R 4.0.0, R 3.6.3
 
 ## R CMD check results
 
-0 errors | 0 warnings | 1 note
+0 errors | 0 warnings | 0 note
 
-* This is a new release.
+## Revdep checks
 
-## Re-submission
-
-Added Earo Wang as contributor.
+All reverse dependencies have been checked, none have changed to worse.