Fix typos

Thanks to spell_check!

Change-Id: I354b9d1a6658ed0457d3c9df64cf0df74bb92d82
diff --git a/R/ci.R b/R/ci.R
index d3b1102..64f7c0a 100644
--- a/R/ci.R
+++ b/R/ci.R
@@ -7,11 +7,11 @@
 #'
 #'
 #' @seealso
-#' \code{ci} is alread included in \code{\link{frequencyQuery}}
+#' \code{ci} is already included in \code{\link{frequencyQuery}}
 #'
 #' @param df table with columns for absolute and total frequencies.
 #' @param x  column with the observed absolute frequency.
-#' @param N  column with the total frequncies
+#' @param N  column with the total frequencies
 #' @param conf.level confidence level of the returned confidence interval. Must
 #'   be a single number between 0 and 1.
 #'