on new project page include hint about project description line break

[danbjoseph]

When creating a new project in the managers dashboard, it can be useful to add a break between paragraphs in the project description. Currently, the only guidance is that markdown syntax is supported. @laurentS has helpfully pointed out that including a non-breaking space between double new lines will create an empty line. That is: \n\n \n\n

1. Confirm that this workaround doesn't have unintended consequences. For example, is the project description included in any data exports and does this mess up the CSV?
2. Explore alternative options. For example: Another thing that you could do would be to change the styling for rendered markdown so that space between paragraphs is wider. But maybe you don't want this everywhere.
3. If going with the workaround in 1 as a valid process, suggest to consider including it in the help text on the page to create a new project?