diff --git a/man/cell_spec.Rd b/man/cell_spec.Rd
index 9d5e050..2e758b0 100644
--- a/man/cell_spec.Rd
+++ b/man/cell_spec.Rd
@@ -5,14 +5,16 @@
 \alias{text_spec}
 \title{Specify Cell/Text format}
 \usage{
-cell_spec(x, format, bold = F, italic = F, monospace = F, color = NULL,
-  background = NULL, align = NULL, font_size = NULL, angle = NULL,
-  tooltip = NULL, background_as_tile = TRUE,
+cell_spec(x, format, bold = FALSE, italic = FALSE, monospace = FALSE,
+  color = NULL, background = NULL, align = NULL, font_size = NULL,
+  angle = NULL, tooltip = NULL, popover = NULL, link = NULL,
+  escape = TRUE, background_as_tile = TRUE,
   latex_background_in_cell = TRUE)
 
-text_spec(x, format, bold = F, italic = F, monospace = F, color = NULL,
-  background = NULL, align = NULL, font_size = NULL, angle = NULL,
-  tooltip = NULL, background_as_tile = TRUE,
+text_spec(x, format, bold = FALSE, italic = FALSE, monospace = FALSE,
+  color = NULL, background = NULL, align = NULL, font_size = NULL,
+  angle = NULL, tooltip = NULL, popover = NULL, link = NULL,
+  escape = TRUE, background_as_tile = TRUE,
   latex_background_in_cell = FALSE)
 }
 \arguments{
@@ -40,12 +42,25 @@
 \code{initial} and \code{inherit} while for LaTeX, you can only choose
 from \code{l}, \code{c} & \code{r}.}
 
-\item{font_size}{j}
+\item{font_size}{A numeric input for font size. For HTML, you can also use
+options}
 
 \item{angle}{0-360, degree that the text will rotate. Can be a vector.}
 
 \item{tooltip}{A vector of strings to be displayed as tooltip.
-Obviously, this feature is only available in HTML.}
+Obviously, this feature is only available in HTML. Read the package
+vignette to see how to use bootstrap tooltip css to improve the loading
+speed and look.}
+
+\item{popover}{Similar with tooltip but can hold more contents. The best way
+to build a popover is through \code{spec_popover()}. If you only provide a text
+string, it will be used as content. Note that You have to enable this
+bootstrap module manually. Read the package vignette to see how.}
+
+\item{link}{A vector of strings for url links. Can be used together with
+tooltip and popover.}
+
+\item{escape}{T/F value showing whether special characters should be escaped.}
 
 \item{background_as_tile}{T/F value indicating if you want to have round
 cornered tile as background in HTML.}
diff --git a/man/spec_popover.Rd b/man/spec_popover.Rd
new file mode 100644
index 0000000..c9565d7
--- /dev/null
+++ b/man/spec_popover.Rd
@@ -0,0 +1,23 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/spec_tools.R
+\name{spec_popover}
+\alias{spec_popover}
+\title{Setup bootstrap popover}
+\usage{
+spec_popover(content = NULL, title = NULL, trigger = "hover",
+  position = "right")
+}
+\arguments{
+\item{content}{content for pop-over message}
+
+\item{title}{title for pop-over message.}
+
+\item{trigger}{Controls how the pop-over message should be triggered.
+Possible values include \code{hover} (default), \code{click}, \code{focus} and \code{manual}.}
+
+\item{position}{How the tooltip should be positioned. Possible values are
+\code{right}(default), \code{top}, \code{bottom}, \code{left} & \code{auto}.}
+}
+\description{
+Setup bootstrap popover
+}
diff --git a/man/spec_tooltip.Rd b/man/spec_tooltip.Rd
new file mode 100644
index 0000000..8f2543a
--- /dev/null
+++ b/man/spec_tooltip.Rd
@@ -0,0 +1,17 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/spec_tools.R
+\name{spec_tooltip}
+\alias{spec_tooltip}
+\title{Setup bootstrap tooltip}
+\usage{
+spec_tooltip(title, position = "right")
+}
+\arguments{
+\item{title}{text for hovering message}
+
+\item{position}{How the tooltip should be positioned. Possible values are
+\code{right}(default), \code{top}, \code{bottom}, \code{left} & \code{auto}.}
+}
+\description{
+Setup bootstrap tooltip
+}