Hi Eli,
There are keyboard shortcuts for entering non breaking spaces, but these depend on your operating system and browser:
Chrome (Mac) option + space
Safari (Mac) option + shift + space
Firefox option + shift + space
Windows Left Alt + 255 or Alt + 0160 (Explanation: Hold Left Alt; while holding it, type 255 on the number pad; release Left Alt)
You can read more about these here.
Let me know if this helps or if you have any further questions.