splitting developer documentation from main doc, adding some links to… #119

Job	Run time
(Allowed Failure) Python 3.11 with dev version of key dependencies	3m 13s
Python 3.9.xx with minimal dependencies	2m 54s
Python 3.9.xx with all optional dependencies	1m 56s
Python 3.9.xx with numpy 1.24 and full coverage	1m 29s
Python 3.10.xx with minimal dependencies	1m 28s
Python 3.10.xx with all optional dependencies	1m 43s
Python 3.10.xx with numpy 1.24 and full coverage	3m 43s
Python 3.10.xx with numpy 2.10 and full coverage	1m 49s
Python 3.11.xx with minimal dependencies	2m 37s
Python 3.11.xx with all optional dependencies	2m 45s
Python 3.11.xx with numpy 1.24 and full coverage	2m 30s
Python 3.11.xx with numpy 2.10 and full coverage	2m 33s
	28m 40s

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