Document performance profiling and usage of console.profile

[stefnotch]

What I did
I tried looking up how to do performance profiling with Deno, and was delighted to see that the Chrome Devtools work.

However, the first Google search result for deno profiling is https://docs.deno.com/runtime/contributing/profiling/ , which seems very unhelpful as a user. The second result is https://docs.deno.com/runtime/fundamentals/debugging/ , which contains relevant information, except that it only mentions debugging. No mention of profiling or the performance tab.

Expected
I would have expected to find at least one line mentioning it, along with a picture that showcases it. It would be even nicer if it also mentioned console.profile() and console.profileEnd().

P.S. I also opened an issue about updating the MDN metadata regarding console.profile, since Deno seems to supports it. Which is super nice! mdn/browser-compat-data#25022