docs/config-gerrit: fix user.email markup
The `" in asciidoc means a closing curved quotation mark. Doubling the
backticks fixes this, as in the example here:
https://docs.asciidoctor.org/asciidoc/latest/syntax-quick-reference/#ex-curved
Change-Id: I9991fb89c3e68580c385e30a72431eb8d203aacb
diff --git a/Documentation/config-gerrit.txt b/Documentation/config-gerrit.txt
index 76e1f82..84e68ed 100644
--- a/Documentation/config-gerrit.txt
+++ b/Documentation/config-gerrit.txt
@@ -5637,7 +5637,7 @@
Email address that Gerrit refers to itself as when it creates a
new Git commit, such as a merge commit during change submission.
+
-If not set, Gerrit generates this as "gerrit@`hostname`", where
+If not set, Gerrit generates this as "gerrit@``hostname``", where
`hostname` is the hostname of the system Gerrit is running on.
+
By default, not set, generating the value at startup.
