[PATCH] doc: flow-perf: document the --query-rate option

[Sunyang Wu]

The flow-perf tool already supports the --query-rate option to enable
query rate calculations, but the option was missing from the
documentation.

Signed-off-by: Sunyang Wu <sunyang.wu at jaguarmicro.com>
---
 doc/guides/tools/flow-perf.rst | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/doc/guides/tools/flow-perf.rst b/doc/guides/tools/flow-perf.rst
index c0c7ffe577..a289ba482b 100644
--- a/doc/guides/tools/flow-perf.rst
+++ b/doc/guides/tools/flow-perf.rst
@@ -87,6 +87,9 @@ The command line options are:
 *	``--deletion-rate``
 	Enable deletion rate calculations.
 
+*	``--query-rate``
+	Enable query rate calculations.
+
 *	``--dump-socket-mem``
 	Dump the memory stats for each socket before the insertion and after.
 
-- 
2.19.0.rc0.windows.1