Here at Webmaklay there is no possibility to upload an image onto the source to be displayed on the forum post, however all participants are welcome to use any of a free image hosting services to show up their screen shot or project sample on our forum page or chat. Please find for any free image hosting services. Some services allow you to display your image as a link or even as a source code to be embed right in to your topic post. Try (ImgBB for example).