diff --git a/.Rbuildignore b/.Rbuildignore
index e573139..ef09dda 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -11,3 +11,4 @@
 ^CRAN-RELEASE$
 ^\.github$
 ^CRAN-SUBMISSION$
+^man/figures/fuzzyhelp\.gif$
diff --git a/README.md b/README.md
index ba81935..5873cfb 100644
--- a/README.md
+++ b/README.md
@@ -9,12 +9,13 @@
 
 `felp` is a short of **f**unctional h**elp**, and provides
 
-- fuzzy search and preview of help with `fuzzyhelp` function or "Fuzzy Search on R Help" RStudio Addin
-- the `?.` pseudo-post fix operator to simultaneously display a help document
-  and a structure of an object
-- the `?p` pseudo-post fix operator to display document of a package
-
-and more in [Syntax](#Syntax) and [Get started](https://felp.atusy.net/articles/felp.html)
+- [fuzzy search and preview of help](fuzzy-search-and-preview-of-help)
+    - with `fuzzyhelp` function or "Fuzzy Search on R Help" RStudio Addin
+- [Enhanced alternatives of base features](#enhanced-alternatives-of-base-features)
+    - `?.` pseudo-postfix operator to simultaneously display a help document
+      and a structure of an object
+    - `?p` pseudo-postfix operator to display document of a package
+    - and more
 
 ## Installation
 
@@ -30,7 +31,15 @@ install.packages("felp")
 source("https://install-github.me/atusy/felp")
 ```
 
-## Syntax
+## Features
+
+### Fuzzy search and preview of help
+
+with `fuzzyhelp()` or "Fuzzy Search on R Help" RStudio Addin
+
+![Fuzzy search and preview of help](man/figures/fuzzyhelp.gif)
+
+### Enhanced alternatives of base features
 
 ``` r
 # ? operator
diff --git a/docs/articles/felp.html b/docs/articles/felp.html
index 673188b..6062172 100644
--- a/docs/articles/felp.html
+++ b/docs/articles/felp.html
@@ -323,7 +323,7 @@ <h2 id="felppackage">felp(package)<a class="anchor" aria-label="anchor" href="#f
 Suggests:          knitr, printr, testthat (&gt;= 2.1.0), covr, rmarkdown
 VignetteBuilder:   knitr
 Language:          en-US
-Built:             R 4.3.3; ; 2024-03-27 15:39:19 UTC; unix
+Built:             R 4.3.3; ; 2024-03-28 00:10:16 UTC; unix
 
 Index:
 
diff --git a/docs/index.html b/docs/index.html
index d0696b7..ebf5f51 100644
--- a/docs/index.html
+++ b/docs/index.html
@@ -85,11 +85,23 @@
 </h1></div>
 <p><code>felp</code> is a short of <strong>f</strong>unctional h<strong>elp</strong>, and provides</p>
 <ul>
-<li>fuzzy search and preview of help with <code>fuzzyhelp</code> function or “Fuzzy Search on R Help” RStudio Addin</li>
-<li>the <code>?.</code> pseudo-post fix operator to simultaneously display a help document and a structure of an object</li>
-<li>the <code>?p</code> pseudo-post fix operator to display document of a package</li>
+<li>
+<a href="fuzzy-search-and-preview-of-help">fuzzy search and preview of help</a>
+<ul>
+<li>with <code>fuzzyhelp</code> function or “Fuzzy Search on R Help” RStudio Addin</li>
+</ul>
+</li>
+<li>
+<a href="#enhanced-alternatives-of-base-features">Enhanced alternatives of base features</a>
+<ul>
+<li>
+<code>?.</code> pseudo-postfix operator to simultaneously display a help document and a structure of an object</li>
+<li>
+<code>?p</code> pseudo-postfix operator to display document of a package</li>
+<li>and more</li>
+</ul>
+</li>
 </ul>
-<p>and more in <a href="#Syntax">Syntax</a> and <a href="https://felp.atusy.net/articles/felp.html" class="external-link">Get started</a></p>
 <div class="section level2">
 <h2 id="installation">Installation<a class="anchor" aria-label="anchor" href="#installation"></a>
 </h2>
@@ -107,8 +119,19 @@ <h3 id="from-github">From GitHub<a class="anchor" aria-label="anchor" href="#fro
 </div>
 </div>
 <div class="section level2">
-<h2 id="syntax">Syntax<a class="anchor" aria-label="anchor" href="#syntax"></a>
+<h2 id="features">Features<a class="anchor" aria-label="anchor" href="#features"></a>
 </h2>
+<div class="section level3">
+<h3 id="fuzzy-search-and-preview-of-help">Fuzzy search and preview of help<a class="anchor" aria-label="anchor" href="#fuzzy-search-and-preview-of-help"></a>
+</h3>
+<p>with <code><a href="reference/fuzzyhelp.html">fuzzyhelp()</a></code> or “Fuzzy Search on R Help” RStudio Addin</p>
+<div class="float">
+<img src="reference/figures/fuzzyhelp.gif" alt="Fuzzy search and preview of help"><div class="figcaption">Fuzzy search and preview of help</div>
+</div>
+</div>
+<div class="section level3">
+<h3 id="enhanced-alternatives-of-base-features">Enhanced alternatives of base features<a class="anchor" aria-label="anchor" href="#enhanced-alternatives-of-base-features"></a>
+</h3>
 <div class="sourceCode" id="cb3"><pre class="downlit sourceCode r">
 <code class="sourceCode R"><span><span class="co"># ? operator</span></span>
 <span><span class="op">?</span><span class="va">help</span></span>
@@ -128,6 +151,7 @@ <h2 id="syntax">Syntax<a class="anchor" aria-label="anchor" href="#syntax"></a>
 <span><span class="fu"><a href="reference/felp.html">felp</a></span><span class="op">(</span><span class="va">help</span>, <span class="va">utils</span><span class="op">)</span></span>
 <span><span class="fu"><a href="reference/felp.html">felp</a></span><span class="op">(</span>package <span class="op">=</span> <span class="va">utils</span><span class="op">)</span></span></code></pre></div>
 </div>
+</div>
 </div>
 
   </div>
diff --git a/docs/pkgdown.yml b/docs/pkgdown.yml
index c328fb4..ec1c903 100644
--- a/docs/pkgdown.yml
+++ b/docs/pkgdown.yml
@@ -3,5 +3,5 @@ pkgdown: 2.0.7
 pkgdown_sha: ~
 articles:
   felp: felp.html
-last_built: 2024-03-27T15:39Z
+last_built: 2024-03-28T00:10Z
 
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