Document how to enable git protocol version 2
Change-Id: If76b8f48f0df19fbf3851236f917d7461999af7a
diff --git a/Documentation/config-gerrit.txt b/Documentation/config-gerrit.txt
index 3f21a8a..eb751ac 100644
--- a/Documentation/config-gerrit.txt
+++ b/Documentation/config-gerrit.txt
@@ -5245,6 +5245,23 @@
trustFolderStat = false
----
+[[jgit-protocol]]
+=== Section protocol
+
+[[protocol.version]]protocol.version::
++
+If set, the server will accept requests from a client attempting to communicate
+using the specified protocol version. Otherwise communication falls back to version 0.
+If set in file `etc/jgit.config` this option will be used for all repositories of
+the site. It can be overridden for a given repository by configuring a different
+value in the repository's `config` file.
++
+Supported versions:
+0:: the original wire protocol.
+1:: the original wire protocol with the addition of a version string in the initial response from the server.
+2:: wire protocol version 2. Speeds up fetches from repositories with many refs by allowing the client
+ to specify which refs to list before the server lists them.
+
GERRIT
------
Part of link:index.html[Gerrit Code Review]
