doc: add usage and data link to homepage

Author: ctarn

doc/index.html

@@ -127,14 +127,43 @@
     <a href="doc/stable/"><img class="badge" src='https://img.shields.io/badge/doc-stable-blue.svg'/></a>
     <a href="doc/guide/#faq"><img class="badge" src='https://img.shields.io/badge/doc-FAQ-yellow.svg'/></a>
     <a href="https://github.com/ctarn/TargetWizard.jl"><img class="badge" src='https://img.shields.io/badge/code-GitHub-green.svg'/></a>
+    <a href="https://proteomecentral.proteomexchange.org/cgi/GetDataset?ID=PXD065604"><img class="badge" src='https://img.shields.io/badge/demo-PXD065604-silver.svg'/></a>
 </div>
 
 <h2>Release</h2>
 <div class="ui"><img src="fig/TargetWizard_ui.png" alt="ui"/></div>
 {{ release }}
 </div>
+
+<h2>Usage</h2>
+<h3>System Requirements</h3>
+<p>
+macOS (11 or later), or Windows (10 or later)
+</p>
+
+<p>
+<a href="thermorawread.ctarn.io">ThermoRawRead</a> is required to process .raw files,
+and dotnet 8.0 is required to run ThermoRawRead.
+</p>
+<h3>Installation</h3>
+<ul>
+<li>Download the latest release from <a href="targetwizard.ctarn.io">targetwizard.ctarn.io</a>.</li>
+<li>For Windows users, the software can be used directly without installation.</li>
+<li>For macOS users, install the software using the `.pkg` release, or unzip the downloaded `.zip` file and move the `TargetWizard.app` to `/Applications`.</li>
+<li>Installation (if required) should be finished in less than one minute.</li>
+</ul>
+
+<h3>Example</h3>
+<ul>
+<li>The <a href="targetwizard.ctarn.io/doc">documentations</a> provided detailed tutorials or manuals.</li>
+<li>The demo data can be downloaded from <a href="targetwizard.ctarn.io">targetwizard.ctarn.io</a>, and used to try TargetWizard.</li>
+<li>For most tasks, TargetWizard can compelete various tasks within minutes.</li>
+</ul>
 </main>
 
+<h3>Contact</h3>
+For any questions, including bug reports, feature requests, or general inquiries, please contact us at <a href="mailto:i@ctarn.io">i@ctarn.io</a>
+
 <footer>
 <div class="footer">
 <span><a href="http://ctarn.io">http://ctarn.io</a></span>