[PATCH] docs: ftrace: fix a issue with duplicated subtitle number

[Donglin Peng]

The subtitle "5.3 Clearing filters" and "5.3 Subsystem filters" has
the same index number, let's fix it.

Fixes: 95b696088c1c ("tracing/filters: add filter Documentation")
Signed-off-by: Donglin Peng <dolinux.peng@xxxxxxxxx>
---
 Documentation/trace/events.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/trace/events.rst b/Documentation/trace/events.rst
index c47f381d0c00..8f86eef1bada 100644
--- a/Documentation/trace/events.rst
+++ b/Documentation/trace/events.rst
@@ -258,7 +258,7 @@ file.
 To clear the filters for all events in a subsystem, write a '0' to the
 subsystem's filter file.
 
-5.3 Subsystem filters
+5.4 Subsystem filters
 ---------------------
 
 For convenience, filters for every event in a subsystem can be set or
@@ -305,7 +305,7 @@ their old filters)::
 	# cat sched_wakeup/filter
 	common_pid == 0
 
-5.4 PID filtering
+5.5 PID filtering
 -----------------
 
 The set_event_pid file in the same directory as the top events directory
-- 
2.25.1