Merge pull request #373 from baijum/present-link

update link to "present" tool docs
diff --git a/talksapp/assets/home.article b/talksapp/assets/home.article
index 21d5078..e10d0f6 100644
--- a/talksapp/assets/home.article
+++ b/talksapp/assets/home.article
@@ -9,7 +9,7 @@
 * Introduction
 
 This site plays slide presentations and articles stored on GitHub in the 
-[[http://godoc.org/code.google.com/p/go.tools/present][present format]].
+[[https://godoc.org/golang.org/x/tools/present][present format]].
 
 The syntax for URLs is: