Add automated_greylisting_design_highlights.md to doc folder #2212

Job	Run time
macOS 13 native [GOAL install] [GUI] [no depends]	5m 28s
Lint	47s
ARM [GOAL install] [bullseye]	2m 37s
Win32	3m 16s
Win64	4m 28s
i386 Linux [GOAL install] [focal]	12m 35s
x86_64 Linux [GOAL install] [GUI] [focal] [no depends]	14m 54s
x86_64 Linux [GOAL install] [GUI] [noble] [no depends]	12m 33s
x86_64 Linux [ASan] [LSan] [UBSan] [integer] [jammy] [no depends]	5m 8s
macOS 10.14 [GOAL deploy] [GUI] [no tests] [noble]	3m 15s
arm64 macOS 10.14 [GOAL deploy] [GUI] [no tests] [noble]	3m 43s
	1h 8m 44s

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