Fix minor spelling mistake in Gerrit documentation

Change-Id: Ia3a028698ee87b7cda17cc44e53db287ed1d40f3
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
diff --git a/Documentation/config-gerrit.txt b/Documentation/config-gerrit.txt
index 6f93920..2d7b787e 100644
--- a/Documentation/config-gerrit.txt
+++ b/Documentation/config-gerrit.txt
@@ -1955,7 +1955,7 @@
 this section, existing changes must be reindexed with the
 link:pgm-ScanTrackingIds.html[ScanTrackingIds] program.
 
-The tracking ids are serachable using tr:<tracking id> or
+The tracking ids are searchable using tr:<tracking id> or
 bug:<tracking id>.
 
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