Adding an Image
When typing your Image description, I find it best to work in a word processing program first. That way, you can work at your own pace, and programs like Google Drive auto-save frequently.
Text boxes support special formatting. The instructions for the formatting are listed below each text box. I suggest copying & pasting those instructions and list them at the top of your document to remind you of those rules, so you can type your text with the formatting options in mind.
If you are all done, be sure to click Update at the bottom of the Image Details page. Otherwise, continue to scroll down the Image Details page in your Control Panel.