docs: merge postgrest-docs into the core repository #2390

Job	Run time
Build MacOS (Nix)	17m 51s
Build Linux (Stack)	31s
Build MacOS (Stack)	1m 25s
Get FreeBSD build from CirrusCI	5m 17s
Build Linux (Cabal, GHC 9.0.2)	1m 23s
Build Windows (Stack)	3m 26s
Prepopulate Nix cache for Linux runners	17m 9s
Build Linux (Cabal, GHC 9.2.4)	1m 27s
Build aarch64 (Cabal, GHC ${{ matrix.ghc }})	0s
Test memory (Nix)	2m 3s
Build Linux static (Nix)	1m 32s
Test (Nix)	5m 51s
Lint & check code style	1m 50s
Test PG 9.6 (Nix)	4m 24s
Test PG 10 (Nix)	4m 43s
Test PG 11 (Nix)	4m 19s
Test PG 12 (Nix)	4m 17s
Test PG 13 (Nix)	4m 37s
Test PG 14 (Nix)	4m 11s
Test PG 15 (Nix)	4m 35s
Test PG 16 (Nix)	4m 16s
Prepare release	0s
Release on GitHub	0s
Release on Docker Hub	0s
Release Arm Builds on Docker Hub	0s
Remove copied files from server	0s
	1h 35m 7s

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