doc: fixed copy-paste errors with jsonpointer #115

Job	Run time
test / Lint	19s
test / fuzz-test / Fuzz matrix	7s
test / fuzz-test / fuzz test	0s
test / Unit tests (windows-latest, oldstable)	40s
test / Unit tests (macos-latest, oldstable)	25s
test / Unit tests (windows-latest, stable)	1m 7s
test / Unit tests (ubuntu-latest, stable)	34s
test / Unit tests (macos-latest, stable)	20s
test / Unit tests (ubuntu-latest, oldstable)	19s
test / tests completed	2s
test / collect-reports / collect test reports	14s
test / collect-coverage / collect test coverage	6s
	4m 13s

Provide feedback