AVH documentation does not contain usage hints for Event Recorder

[ReinhardKeil]

Suggest to add a section that explains usage of EventRecorder

https://arm-software.github.io/AVH/main/simulation/html/hints.html

Related links
https://github.com/ARM-software/CMSIS-View/tree/main/Examples/EventStatistic

[vovamarch]

This is briefly mentioned at the end of the Semihosting IO section: https://arm-software.github.io/AVH/main/simulation/html/hints.html#semihosting, but agree, is worth a separate subsection. Will add it with a reference to the EventStatic example.