I am not sure if there will be a guide, but it is very easy to manage that it is a tool very similar to the one used by the Office Word system, the change of text font and color, however, the images necessary to put them in a lodging of images, remove the link from that image and in the text field where it says "insert other media" place that link and with that the image will come out, hope you have understood me and that it was your help.