[AIRFLOW-XXX] Correct typos in the faq docs page
[AIRFLOW-XXX] Correct typos in the faq docs page

Closes #2735 from aaronmyatt/correct-typos-in-faq-
page

(cherry picked from commit 54f1b77f99f49f75a415e015432f5e6fefde143d)
Signed-off-by: Bolke de Bruin <17f52a69a3ba26c79c8a88ef8c1f26312d9cbf0e@xs4all.nl>

Twistbioscience/incubator-airflow,Twistbioscience/incubator-airflow,Twistbioscience/incubator-airflow,Twistbioscience/incubator-airflow