README: add a line about using SSO URLs

Change-Id: I2d56f6c6cb593bb44fd18238ab186687b1594d69

README.md

diff --git a/README.md b/README.md
index 88032ce..55b7c65 100644
--- a/README.md
+++ b/README.md
@@ -69,6 +69,8 @@
 git remote add -f gerrit-net https://linux.googlesource.com/linux/kernel/git/davem/net
 ```
 
+(**Googlers:** replace `https://linux.googlesource.com/` with `sso://linux/`)
+
 * **Sign in** into the gerrit instance using [Sign in](https://linux.googlesource.com)
 link in the top-right corner.