Replace links to code.google.com/protobuf with developers.google.com/protocol-buffers

java/README.txt

diff --git a/java/README.txt b/java/README.txt
index 3ed06a1..57e26a9 100644
--- a/java/README.txt
+++ b/java/README.txt
@@ -93,4 +93,4 @@
 The complete documentation for Protocol Buffers is available via the
 web at:
 
-  http://code.google.com/apis/protocolbuffers/
+  https://developers.google.com/protocol-buffers/