Fixed typo in pre-transform-event.md
Fixed typo in pre-transform-event.md

Changed exam_b_le to exam_p_le
fazland/FazlandElasticaBundle,ramuss/FazlandElasticaBundle,fazland/FazlandElasticaBundle,alekitto/FazlandElasticaBundle,alekitto/FazlandElasticaBundle,ramuss/FazlandElasticaBundle