Typo fix in 02.API-REFERENCE.md (#4680)
Typo fix in 02.API-REFERENCE.md (#4680)

JerryScript-DCO-1.0-Signed-off-by: Daniel Batiz af2f45a90485925b635c5d9c5e4fa95b8c24bf0c@gmail.com

Co-authored-by: Daniel Batiz <af2f45a90485925b635c5d9c5e4fa95b8c24bf0c@gmail.com>
jerryscript-project/jerryscript,robertsipka/jerryscript,robertsipka/jerryscript,zherczeg/jerryscript,robertsipka/jerryscript,zherczeg/jerryscript,zherczeg/jerryscript,dbatyai/jerryscript,dbatyai/jerryscript,jerryscript-project/jerryscript,zherczeg/jerryscript,dbatyai/jerryscript,jerryscript-project/jerryscript,robertsipka/jerryscript,jerryscript-project/jerryscript,robertsipka/jerryscript,robertsipka/jerryscript,jerryscript-project/jerryscript,dbatyai/jerryscript,zherczeg/jerryscript,dbatyai/jerryscript