+ cran comments markdown

.Rbuildignore

@@ -7,3 +7,4 @@
 ^generate-vignette\.R$
 ^vignette\.Rmd\.orig$
 ^codecov\.yml$
+^cran-comments\.md$

cran-comments.md

@@ -0,0 +1,25 @@
+## Test environments
+* Ubuntu 20.04.2 LTS, 4.1.3 (2022-03-10) (local)
+* Windows R version 4.2.0 (2022-04-22 ucrt) (win-builder)
+* Windows R Under development (unstable) (2022-04-25 r82253 ucrt) (win-builder)
+* Windows R version 4.1.3 (2022-03-10) (win-builder)
+* Microsoft Windows Server 2022, R version 4.2.0 (2022-04-22 ucrt) (GitHub Actions)
+* Ubuntu 20.04.04 LTS, R Under development (unstable) (2022-04-21 r82226) (GitHub Actions)
+
+## R CMD check results
+Status: OK
+
+## Downstream dependencies
+There are no downstream dependencies.
+
+## CRAN checks
+There are no issues with CRAN checks.
+
+# [!!] Change of maintainers
+The package was formerly maintained by Rodrigo Azuero Melo <rodazuero@gmail.com>. After mutual agreement I am taking over as a maintainer. 
+
+The change of maintainer comes with a major version bump (3.4 >> 4.0.0). No new user facing functionality is introduced, but some cleaning up was necessary (the last CRAN version is dated 2018-08-28).
+
+This includes unit testing via {testthat}. Note that since the package functionality is entirely dependent on API key it is not practical to have the unit tests run on CRAN hardware (the same applies to examples). I am relying on monthly checks on GitHub Actions instead.
+
+Also the section of examples was transformed to vignette format.