Removing internal links from README.

Change-Id: Iac7497589362b6117f26bbd0512cdbe0d3b4b4cf
diff --git a/README.md b/README.md
index 4767885..75ff3f1 100644
--- a/README.md
+++ b/README.md
@@ -1,15 +1,9 @@
 # Hafnium
 
-[go/hafnium](https://goto.google.com/hafnium)
-
 Hafnium is a hypervisor, initially supporting aarch64 (64-bit ARMv8 CPUs).
 
-Further details are available in the [design doc](https://goto.google.com/hafnium-dd).
-
 Get in touch and keep up-to-date at
-[g/hafnium-eng](https://groups.google.com/a/google.com/forum/#!forum/hafnium-eng).
-
-File bugs at [go/hafnium-bug](https://goto.google.com/hafnium-bug).
+[hafnium-discuss@googlegroups.com](https://groups.google.com/forum/#!forum/hafnium-discuss).
 
 ## Getting started