Update docs with new endpoints

[nickrobinson251]

• Update README with documentation on
  • Add alloc profiling start/stop endpoints #10
  • Add cpu profiling start/stop endpoints #11
  • Add heap snapshot endpoint #12

Note, currently pointed at PR#12, and that should go in first

[coveralls]

Pull Request Test Coverage Report for Build 3648970808

Warning: This coverage report may be inaccurate.

This pull request's base commit is no longer the HEAD commit of its target branch. This means it includes changes from outside the original pull request, including, potentially, unrelated coverage changes.

• For more information on this, see Tracking coverage changes with pull request builds.
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• For a quick fix, rebase this PR at GitHub. Your next report should be accurate.

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 3648963575:	0.0%
Covered Lines:	132
Relevant Lines:	132

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💛 - Coveralls