contributing: fix cla process

The contributing file instructs CLA signers to send them to the mailing
list but this conflicts with the instructions in the CLA itself and
further it violates our code of conduct by requiring signers to divulge
personal information.

Change the contributing file to match the instructions in the CLAs,
which is to send the signed CLA to manager@lfprojects.org.

Change-Id: I2d777d0bbfa3e5298e72f7d04d49e91d20a56b79
Signed-off-by: Brad Bishop <bradleyb@fuzziesquirrel.com>
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 738ed81..80bbb1f 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -261,7 +261,7 @@
 If you work for someone, consider asking them to execute the corporate CLA.  This
 allows other contributors that work for your employer to skip the CLA signing process.
 
-After signing a CLA, send it to openbmc@lists.ozlabs.org.
+After signing a CLA, send it to manager@lfprojects.org.
 
 _One time setup_: Login to the WebUI with your GitHub credentials and verify on
 your Account Settings that your SSH keys were imported: