little change in README

README.md

 The Simple Reaction Time Task (Deary & Liewald, 2011)
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-Reaction times have been studies for over 100 years and a staple of scientific study in psychology. A commonly used procedure is to study reaction time involves measuring simple reaction times to a single stimulus.
+********Reaction times************ have been studies for over 100 years and a staple of scientific study in psychology. A commonly used procedure is to study reaction time involves measuring simple reaction times to a single stimulus.
 
 The task
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