build FIx - Html proofer issue: removed source tage from video and added src attribute to video tag; removed extra attributes from iframe src; added true value to extra attributes under video and iframe
build FIx - Html proofer issue: removed source tage from video and added src attribute to video tag; removed extra attributes from iframe src; added true value to extra attributes under video and iframe

GaneshSPatil/www.go.cd,GaneshSPatil/www.go.cd,gocd/gocd.github.io,gocd/www.go.cd,ketan/gocd.github.io,ketan/gocd.github.io,ketan/www.go.cd,ketan/www.go.cd,gocd/gocd.github.io,gocd/gocd.github.io,ketan/www.go.cd,GaneshSPatil/www.go.cd,GaneshSPatil/www.go.cd,gocd/www.go.cd,gocd/gocd.github.io,ketan/gocd.github.io,gocd/www.go.cd,gocd/www.go.cd