Thank you for letting me know, we will look into it. And apologies for the inconvenience. Another nice way to avoid the whole issue including unicode conversion, is just embed the notebook -- in the editor there is now a button for that. Embedded notebooks can be mixed with other usual type of content in a single post: text, images, any markdown elements, other notebooks. An embedded notebook can be as simple as a single cell and as complex asa blog article -- and it will preserve all the formatting of the Wolfram Cloud notebooks.