Added language support

DESCRIPTION

@@ -16,6 +16,7 @@ Imports:
       jsonlite,
       rlist
 Suggests:
+    spelling,
     dplyr,
     testthat,
     covr,
@@ -23,5 +24,6 @@ Suggests:
     magrittr,
     purrr,
     rmarkdown
-RoxygenNote: 6.0.1
+RoxygenNote: 6.0.1.9000
 VignetteBuilder: knitr
+Language: en-US

inst/WORDLIST

+Altmerics
+altmetric
+Altmetric
+arxiv
+doi
+explaning
+https
+Karthik
+knitr
+MEDLINE
+preprints
+pubmed
+Pubmed
+PubMed
+rmarkdown
+VignetteEncoding
+VignetteEngine
+VignetteIndexEntry
+www

tests/spelling.R

+spelling::spell_check_test(vignettes = TRUE, error = FALSE)