Update: 'update BasicLayout.js' (#211)

Fix the website link
diff --git a/src/layouts/BasicLayout.js b/src/layouts/BasicLayout.js
index 1ea9595..3f8ac68 100644
--- a/src/layouts/BasicLayout.js
+++ b/src/layouts/BasicLayout.js
@@ -275,7 +275,7 @@
             links={[{
               key: 'SkyWalking',
               title: 'Apache SkyWalking',
-              href: 'http://skywalking.io',
+              href: 'http://skywalking.apache.org',
               blankTarget: true,
             }, {
               key: 'GitHub',