Update about.html

Author: Gmac4247

about.html

@@ -101,7 +101,7 @@
   "alternateName": "About page",
   "accessMode" : "textOnVisual" ,
 "accessibilityHazard" :"none" ,
-"accessibilitySummary" : "reading" ,
+"accessibilitySummary" : "View videos, figures and equations with explanation." ,
 "accountablePerson" :
 {"@type" : "Person" ,
 "address": {