Repository navigation

Provide a kcachegrind viewer and update docs #188

Job	Run time
Build pypy wheels and sdist (pypy-3.12)	1m 2s
Build pypy wheels and sdist (pypy-3.11)	1m 29s
Build binary wheels on ubuntu-24.04	18m 58s
Build binary wheels on macos-latest	4m 23s
Build binary wheels on windows-2022	10m 0s
	35m 52s