add collapse_rows html
diff --git a/man/collapse_rows.Rd b/man/collapse_rows.Rd
new file mode 100644
index 0000000..aafb7e5
--- /dev/null
+++ b/man/collapse_rows.Rd
@@ -0,0 +1,11 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/collapse_rows.R
+\name{collapse_rows}
+\alias{collapse_rows}
+\title{Collapse repeat rows to multirow cell}
+\usage{
+collapse_rows(kable_input, columns)
+}
+\description{
+Collapse repeat rows to multirow cell
+}
diff --git a/man/row_spec.Rd b/man/row_spec.Rd
index 169c05a..deb7912 100644
--- a/man/row_spec.Rd
+++ b/man/row_spec.Rd
@@ -9,7 +9,8 @@
\arguments{
\item{kable_input}{Output of `knitr::kable()` with `format` specified}
-\item{row}{A numeric value indicating which row to be selected}
+\item{row}{A numeric value indicating which row to be selected. You don't
+need to count in header rows or group labeling rows.}
\item{bold}{A T/F value to control whether the text of the selected row
need to be bolded.}