Update index.html

fixed tense of prior role

index.html

@@ -208,10 +208,11 @@ <h4>Graduate Research Assistant</h4>
             <h5>Carnegie Mellon University - Institute for Software Research<br>
               September 2014 to September 2021</h5>
             <p>
-		My research is focused on Usable Privacy and Security, incorporating qualitative and quantitative (mixed-methods) methodologies seen in behavioral economics, user-centered design, requirements engineering, machine learning, and empirical software engineering. 
-		My thesis investigates a broad cross section of privacy and security decisions in browsers and mobile apps; systematically assessing their effectiveness and manageability, exploring standardization, discussing public policy issues, and generalizability to other domains (e.g., Internet of Things). 
-		My work demonstrates that when the settings are well-aligned with people's mental models, machine learning can leverage the predictive power in models of more complex settings to help people manage their preferences more easily. 
-		This can effectively mitigate trade-offs between accuracy and increased user burden as settings proliferate.
+		I focused my research on Usable Privacy and Security, employing a mixed-methods approach that combined qualitative and quantitative methodologies from behavioral economics, user-centered design, requirements engineering, machine learning, and empirical software engineering. 
+		    My thesis investigated a broad range of privacy and security decisions found in browsers and mobile apps. 
+		    I systematically assessed their effectiveness and manageability, explored standardization, discussed public policy issues, and considered generalizability to domains like the Internet of Things. 
+		    My work demonstrated that well-aligned settings with users' mental models allowed machine learning to leverage the predictive power of complex settings. 
+		    This, in turn, helped people manage their preferences more easily. This approach effectively mitigated the trade-offs between accuracy and increased user burden as settings became more numerous.
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