Move period to end of bullet point SHHS MOP 6-610-mop-overview-of-scoring Sleep Architecture

[JLArnold]

https://www.sleepdata.org/datasets/shhs/pages/mop/6-610-mop-overview-of-scoring.md

SHHS 6-610-mop-overview-of-scoring 6.6.1 Overview of Scoring, move period to end of bullet point, Sleep Architecture, “Sleep efficiency.(sleep time/time in bed – lights off to end of study)” should be “Sleep efficiency (sleep time/time in bed – lights off to end of study).”