Gerrit Setup: Clarify Username for SSH config

The Gerrit Username (e.g. gmills) should be part of the
openbmc.gerrit SSH config entry at ~/.ssh/config. There is a
Gerrit ID (e.g. 1000038), the previous wording could lead to
confusion.

Tested: Grammarly and https://jbt.github.io/markdown-editor/
Change-Id: I3c2432858ae688f3aad2b235b2408afc33c51440
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/development/gerrit-setup.md b/development/gerrit-setup.md
index c5ebf4a..e8c2b83 100644
--- a/development/gerrit-setup.md
+++ b/development/gerrit-setup.md
@@ -46,11 +46,11 @@
 Host openbmc.gerrit
     Hostname gerrit.openbmc-project.xyz
     Port 29418
-    User <YOUR-GERRIT-ID>
+    User <Your Gerrit Username>
 ```
 * **NOTE**: There is a bug in AFS that requires `AFSTokenPassing no` to be
             added to the SSH entry if using AFS.
-* Your Gerrit ID can be found in Gerrit under Settings -> Profile -> Username
+* Your Gerrit Username can be found in Gerrit under Settings -> Profile -> Username
 * Ensure proper permissions for for your .ssh directory: `chmod 600 ~/.ssh/*`
 
 ##### Confirm Setup Success