diff --git a/man/add_footnote.Rd b/man/add_footnote.Rd
new file mode 100644
index 0000000..fd8457d
--- /dev/null
+++ b/man/add_footnote.Rd
@@ -0,0 +1,26 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/footnote.R
+\name{add_footnote}
+\alias{add_footnote}
+\title{Add footnote}
+\usage{
+add_footnote(input, label = NULL, notation = "alphabet")
+}
+\arguments{
+\item{input}{The direct output of your \code{kable} function or your last
+\code{kableExtra} function.}
+
+\item{label}{A vector of footnotes you want to add. You don't need to add
+notations in your notes.}
+
+\item{notation}{You can select the format of your footnote notation from
+"number", "alphabet" and "symbol".}
+}
+\description{
+Add footnote to your favorite kable output. So far this function
+only works when you define \code{format} in your kable function or in the
+global knitr option \code{knitr.table.format}. In latex, we are using the
+\code{threeparttable} package so you need to import this package in your
+\code{YAML} header.
+}
+
diff --git a/man/hello.Rd b/man/hello.Rd
deleted file mode 100644
index 0fa7c4b..0000000
--- a/man/hello.Rd
+++ /dev/null
@@ -1,12 +0,0 @@
-\name{hello}
-\alias{hello}
-\title{Hello, World!}
-\usage{
-hello()
-}
-\description{
-Prints 'Hello, world!'.
-}
-\examples{
-hello()
-}