[sqflite] json1 doc #343

Job	Run time
Test on ubuntu-latest / 3.1.5	1m 29s
Test on ubuntu-latest / stable	1m 26s
Test on ubuntu-latest / beta	1m 27s
Test on ubuntu-latest / dev	1m 32s
Test on windows-latest / 3.1.5	2m 6s
Test on windows-latest / stable	2m 6s
Test on windows-latest / beta	1m 59s
Test on windows-latest / dev	2m 12s
Test on macos-latest / 3.1.5	2m 17s
Test on macos-latest / stable	3m 10s
Test on macos-latest / beta	1m 28s
Test on macos-latest / dev	2m 41s
	23m 53s

Provide feedback