Documentation/trace/events.rst: wrong numbering of sections

["Li Xinhai" <lixinhai.lxh@xxxxxxxxx>]

This document has below numbering of its sections:

1. Introduction
2. Using Event Tracing
2.1 Via the 'set_event' interface
2.2 Via the 'enable' toggle
2.3 Boot option
3. Defining an event-enabled tracepoint
4. Event formats
5. Event filtering
5.1 Expression syntax
5.2 Setting filters
5.3 Clearing filters
5.3 Subsystem filters
5.4 PID filtering
6. Event triggers
6.1 Expression syntax
6.2 Supported trigger commands
6.3 In-kernel trace event API
6.3.1 Dyamically creating synthetic event definitions
6.3.3 Tracing synthetic events from in-kernel code
6.3.3.1 Tracing a synthetic event all at once
6.3.3.1 Tracing a synthetic event piecewise
6.3.4 Dyamically creating kprobe and kretprobe event definitions
6.3.4 The "dynevent_cmd" low-level API

It seems wrong numbering within 6.3 section. 
or, would it be better to have separated chapter #7, for 'In-kernel trace
event API'? it seems not belong to 'Event triggers'.