add release 3.2 to index.html

Author: wtarreau

docs/index.html

@@ -19,7 +19,7 @@ <h1>HAProxy Documentation</h1>
 						<div class="text-center">
 							<div class="panel panel-danger">
 								<div class="panel-heading">
-									<h2>HAProxy 3.1 (DEV)</h2>
+									<h2>HAProxy 3.2 (DEV)</h2>
 								</div>
 								<div class="list-group">
 									<a class="list-group-item" href="./dev/intro.html">Starter Guide</a>
@@ -29,6 +29,20 @@ <h2>HAProxy 3.1 (DEV)</h2>
 							</div>
 						</div>
 					</div>
+					<div class="col-md-4 col-sm-6">
+						<div class="text-center">
+							<div class="panel panel-primary">
+								<div class="panel-heading">
+									<h2>HAProxy 3.1</h2>
+								</div>
+								<div class="list-group">
+									<a class="list-group-item" href="./3.1/intro.html">Starter Guide</a>
+									<a class="list-group-item" href="./3.1/configuration.html">Configuration Manual</a>
+									<a class="list-group-item" href="./3.1/management.html">Management Guide</a>
+								</div>
+							</div>
+						</div>
+					</div>
 					<div class="col-md-4 col-sm-6">
 						<div class="text-center">
 							<div class="panel panel-primary">