url fixes to README.md
url fixes to README.md

purnachand227/solutions-webappbuilder-widgets,Esri/solutions-webappbuilder-widgets,sjayashree01/solutions-webappbuilder-widgets,sjayashree01/solutions-webappbuilder-widgets,sjayashree01/solutions-webappbuilder-widgets,Esri/solutions-webappbuilder-widgets,purnachand227/solutions-webappbuilder-widgets,purnachand227/solutions-webappbuilder-widgets