REfactor docs gitignore #219

Job	Run time
build (cpp, macos-latest)	1m 23s
build (python, ubuntu-latest)	40s
build (python, macos-latest)	56s
build (js, macos-latest)	1m 12s
build (jupyter, ubuntu-latest)	1m 50s
build (js, ubuntu-latest)	1m 15s
build (jupyter, macos-latest)	1m 51s
build (rustjswasm, macos-latest)	9m 16s
build (rust, ubuntu-latest)	5m 40s
build (cpp, ubuntu-latest)	1m 48s
build (rust, macos-latest)	4m 57s
build (cppjswasm, ubuntu-latest)	2m 18s
build (rustjswasm, ubuntu-latest)	7m 55s
build (cppjswasm, macos-latest)	2m 26s
	43m 27s

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