Finally get R github actions succeeding

* Another trivial change to trigger github actions

* Document

* Another trivial change to trigger github actions

* Fix syntax error in roxygen annotation

Author: alecw

.gitignore

@@ -4,3 +4,5 @@
 .Ruserdata
 .idea
 **/venv
+**/*.Rcheck
+R/*.tar.gz

R/bican.mccarroll.helloworld/R/hello.R

@@ -15,7 +15,7 @@
 #   Document Package:          'Cmd + Shift + D'
 
 #' Hello, world!
-#' @@param mom If TRUE, say hello to mom instead of world.
+#' @param mom If TRUE, say hello to mom instead of world.
 #' @export
 hello <- function(mom=FALSE) {
   if (!is.logical(mom)) {