Update README.md

Author: ehsanx

README.md

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 # simMSM
 #### Maintainer: *Ehsan Karim*: http://www.ehsankarim.com 
-#### I am a big fan of **scientific collaboration**. Feel free to contact me in case you are interested to discuss potential projects.
+#### I am a big fan of *scientific collaboration*. Feel free to contact me in case you are interested to discuss potential projects.
 ### R package to generate data suitable for Marginal Structural Cox Model fit
 * This package simulates survival data suitable for fitting Marginal Structural Model.