Remove space before comma

README.md

@@ -21,7 +21,7 @@ widget:
   example_title: "Music 2"
 - text: "Some of the most pronounced effects of Hellenization can be seen in Afghanistan and India, in the region of the relatively late-rising Greco-Bactrian Kingdom (250-125 BC) (in modern Afghanistan, Pakistan, and Tajikistan) and the Indo-Greek Kingdom (180 BC - 10 AD) in modern Afghanistan and India and created a culture of Greco-Buddhist art."
   example_title: "Politics"
-- text: "That first evening session was organized by Jack Yardley from Johns Hopkins University, and included Henry Appelman (University of Michigan) , Harvey Goldman (Beth Israel Deaconess Medical Center and Harvard Medical School), Bill Hawk (The Cleveland Clinic), Tom Kent (University of Iowa), Si-Chun Ming (Temple University), Tom Norris (University of Washington), and Robert Riddell (University of Chicago)."
+- text: "That first evening session was organized by Jack Yardley from Johns Hopkins University, and included Henry Appelman (University of Michigan), Harvey Goldman (Beth Israel Deaconess Medical Center and Harvard Medical School), Bill Hawk (The Cleveland Clinic), Tom Kent (University of Iowa), Si-Chun Ming (Temple University), Tom Norris (University of Washington), and Robert Riddell (University of Chicago)."
   example_title: "Science 1"
 - text: "Viral TK phosphorylates aciclovir into its monophosphate form, which is subsequently phosphorylated to active aciclovir triphoshate by cellular kinases, thus selectively inhibiting viral DNA polymerase."
   example_title: "Science 2"