Begin the page that describes value propositions #1908

Job	Run time
Downstream builds with Python 3.8	47s
Python 3.8 on Linux	2m 50s
CLI responsiveness with latest Python	2m 0s
Downstream builds with Python 3.9	44s
Python 3.9 on Linux	2m 52s
Downstream builds with Python 3.10	36s
Python 3.10 on Linux	2m 47s
Downstream builds with Python 3.11	52s
Python 3.11 on Linux	2m 33s
Downstream builds with Python 3.12	40s
Python 3.12 on Linux	3m 15s
Python 3.8 on Windows	6m 30s
Python 3.9 on Windows	7m 16s
Python 3.10 on Windows	6m 23s
Python 3.11 on Windows	6m 32s
Python 3.12 on Windows	6m 31s
Python 3.8 on macOS	5m 4s
Python 3.9 on macOS	8m 17s
Python 3.10 on macOS	3m 52s
Python 3.11 on macOS	6m 31s
Python 3.12 on macOS	5m 6s
Report coverage	31s
check	2s
	1h 22m 31s

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