fixed missed https

git-svn-id: https://svn.apache.org/repos/asf/maven/pom/trunk@1743973 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/site-docs/site.xml b/src/site-docs/site.xml
index 8d52f9f..d520576 100644
--- a/src/site-docs/site.xml
+++ b/src/site-docs/site.xml
@@ -25,7 +25,7 @@
   <bannerLeft>
     <name>${project.name}</name>
     <src>https://maven.apache.org/images/apache-maven-project.png</src>
-    <href>http://www.apache.org/</href>
+    <href>https://www.apache.org/</href>
   </bannerLeft>
 
   <bannerRight>