go.talks/2012/go-docs.slide: fix a URL typo
Thanks Job van der Zwan for pointing it out.

R=golang-dev, r
CC=golang-dev
https://golang.org/cl/6744051
diff --git a/2012/go-docs.slide b/2012/go-docs.slide
index e6bff65..b160c6c 100644
--- a/2012/go-docs.slide
+++ b/2012/go-docs.slide
@@ -89,7 +89,7 @@
 
 In the `go.talks` repo, have a new tool: `present`.
 
-	go get code.google.com/p/go/present
+	go get code.google.com/p/go.talks/present
 
 - Simple
 - Easy to use