assign append to the correct method name for Document (#721)
assign append to the correct method name for Document (#721)
mcshaz/polyfill-service,kdzwinel/polyfill-service,JakeChampion/polyfill-service,jonathan-fielding/polyfill-service,JakeChampion/polyfill-service,mcshaz/polyfill-service,jonathan-fielding/polyfill-service,kdzwinel/polyfill-service,kdzwinel/polyfill-service,mcshaz/polyfill-service,jonathan-fielding/polyfill-service