Add note about pyinstrument support wiki page

[joerick]

Hello @jlfwong !

Thanks to the efforts of @goxberry over in joerick/pyinstrument#160, my profiler pyinstrument now supports speedscope JSON as an output. I thought you might want to mention it in your README.

I couldn't create the wiki page myself, but if you're able to copy paste this as a new page into the wiki that should work:

Importing from pyinstrument (python)

pyinstrument is a statistical profiler for Python.

pyinstrument has an explicit output format for speedscope (See: https://github.com/joerick/pyinstrument/pull/160).

To profile a Python script and view the output in speedscope, run:

    pyinstrument -r speedscope -o profile.speedscope.json your_script.py

Or, you can profile a specific block of code using:

    from pyinstrument import Profiler
    from pyinstrument.renderers import SpeedscopeRenderer
    
    with Profiler() as profiler:
        ... # your code here

    with open('profile.speedscope.json', 'w') as f:
        f.write(profiler.render(renderer=SpeedscopeRenderer()))

Then drop the resulting profile.speedscope.json into https://www.speedscope.app/

[jlfwong]

Thanks!