Update README.md

Author: nelealbers

README.md

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 # Reinforcement Learning-based Persuasion for a Conversational Agent to Support Behavior Change
 
-This is the code for the conversational agent Sam that suggests preparatory activities for smoking cessation and becoming more physically active in five separate sessions. This conversational agent was used in a longitudinal study with more than 500 participants with the goal of gathering data for and testing a personalized reinforcement learning (RL)-based persuasion algorithm. The study was run on the online platform Prolific.
+This is the code for the conversational agent Sam that acts as a virtual coach and suggests preparatory activities for smoking cessation and becoming more physically active in five separate sessions. This conversational agent was used in a longitudinal study with more than 500 participants with the goal of gathering data for and testing a personalized reinforcement learning (RL)-based persuasion algorithm. The study was run on the online platform Prolific.
 
 
 ## Experiment Flow