Add documentation of the index.threads setting
Change-Id: I4e7b737791968123d78c19ef558327609ef11b30
diff --git a/Documentation/config-gerrit.txt b/Documentation/config-gerrit.txt
index ae6ec64..742907c 100644
--- a/Documentation/config-gerrit.txt
+++ b/Documentation/config-gerrit.txt
@@ -1856,6 +1856,12 @@
+
By default, `SQL`.
+[[index.threads]]index.threads::
++
+Determines the number of threads to use for indexing.
++
+Defaults to 1 if not set, or set to a negative value.
+
[[index.name.ramBufferSize]]index.name.ramBufferSize::
+
Only used when the type is `LUCENE`.
