doc: fix typo in document:export #875

Job	Run time
Forge Node LTS Matrix	1s
Documentation - Error codes check	59s
Lint - Node.js LTS 16	1m 4s
Lint - Node.js LTS 18	1m 8s
Lint - Node.js LTS 20	1m 2s
Unit Tests (16)	1m 26s
Unit Tests (18)	1m 34s
Unit Tests (20)	1m 31s
Build and Run (kuzzle)	3m 42s
Functional tests (jest, 16)	3m 17s
Functional tests (jest, 18)	2m 28s
Functional tests (jest, 20)	2m 26s
Functional tests (http, 16)	6m 52s
Functional tests (http, 18)	6m 7s
Functional tests (http, 20)	6m 9s
Functional tests (websocket, 16)	7m 6s
Functional tests (websocket, 18)	5m 58s
Functional tests (websocket, 20)	5m 51s
Functional tests (legacy:mqtt, 16)	7m 11s
Functional tests (legacy:mqtt, 18)	6m 35s
Functional tests (legacy:mqtt, 20)	6m 57s
Functional tests (legacy:http, 16)	6m 43s
Functional tests (legacy:http, 18)	5m 38s
Functional tests (legacy:http, 20)	5m 31s
Functional tests (legacy:websocket, 16)	7m 23s
Functional tests (legacy:websocket, 18)	7m 52s
Functional tests (legacy:websocket, 20)	6m 15s
Cluster Monkey Tests (16)	2m 58s
Cluster Monkey Tests (18)	2m 5s
Cluster Monkey Tests (20)	2m 7s
Deployment Workflow / Documentation - Deploy	0s
Deployment Workflow / Build and deploy release on NPM.js	0s
	2h 5m 56s

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