link to official manual site

index.html

@@ -29,7 +29,7 @@ <h2>Find bugs in Java Programs</h2>
         <section id="main-content" class="two-column">
           <p>SpotBugs is a program which uses static analysis to look for bugs in Java code.  It is free software, distributed under the terms of the <a href="http://www.gnu.org/licenses/lgpl.html">Lesser GNU Public License</a>.</p>
 
-<p>SpotBugs is the spiritual successor of <a href="http://findbugs.sourceforge.net/">FindBugs</a>, carrying on from the point where it left off with support of its community.</p>
+<p>SpotBugs is the spiritual successor of <a href="http://findbugs.sourceforge.net/">FindBugs</a>, carrying on from the point where it left off with support of its community. Please check <a href="http://spotbugs.readthedocs.io/en/latest/">official manual site</a> for detail.</p>
 
 <p>SpotBugs requires JRE (or JDK) 1.8.0 or later to run.  However, it can analyze programs compiled for any version of Java, from 1.0 to 1.8.</p>