Add meta charset to test pages
Add meta charset to test pages

ZainRizvi/wordcloud2.js,timdream/wordcloud2.js,timdream/wordcloud2.js,alex2wong/wordcloud2.js,alex2wong/wordcloud2.js,ZainRizvi/wordcloud2.js,ZainRizvi/wordcloud2.js,timdream/wordcloud2.js,alex2wong/wordcloud2.js