Use \dontrun instead of \donttest for non-essential examples

This is not so nice for the user experience because of the
wrappers arround examples:

 ## Not run
 ...
 ## End(Not run)

but it is necessary to some extent to pass automatic CRAN
checks under all circumstances, which actually do run
the donttest examples since R 4.0 with a time limit of apparently
20min in total.

Change-Id: If09b1aa381e26179ec1a36edd9d8b07116e3c33e
diff --git a/R/KorAPConnection.R b/R/KorAPConnection.R
index 0919d4e..243e179 100644
--- a/R/KorAPConnection.R
+++ b/R/KorAPConnection.R
@@ -44,13 +44,15 @@
 #'   [corpusQuery()]
 #'
 #' @examples
-#' \donttest{
+#' \dontrun{
+#'
 #' kcon <- new("KorAPConnection", verbose = TRUE)
 #' kq <- corpusQuery(kcon, "Ameisenplage")
 #' kq <- fetchAll(kq)
 #' }
 #'
 #' \dontrun{
+#'
 #' kcon <- new("KorAPConnection", verbose = TRUE, accessToken="e739u6eOzkwADQPdVChxFg")
 #' kq <- corpusQuery(kcon, "Ameisenplage", metadataOnly=FALSE)
 #' kq <- fetchAll(kq)
@@ -95,6 +97,7 @@
 #' @export
 #' @examples
 #' \dontrun{
+#'
 #' kco <- new("KorAPConnection", accessToken="e739u6eOzkwADQPdVChxFg")
 #' persistAccessToken(kco)
 #' }
@@ -115,6 +118,7 @@
 #' @export
 #' @examples
 #' \dontrun{
+#'
 #' kco <- new("KorAPConnection")
 #' clearAccessToken(kco)
 #' }