Add instructions for Google's internal mirror.
@@ -310,6 +310,12 @@ After a few days of iteration:
1. Close the release-tracking bug. If you need to do a patch release, create a
new tracking bug.
+### Updating Google's internal mirror
+
+Please ping @philwo and @meteorcloudy to copy the release binary to their
+internal mirror.
+
+
### Updating the Homebrew recipe
[Homebrew](http://brew.sh/index.html) is a package manager for OS X. This
