How to | Automatically Number Text
There are two ways to automatically number text in the Wolfram Language. The simplest way is to use a cell style that automatically numbers text by default. Alternatively, you can insert an automatic numbering object directly into the text.
To insert additional numbered text cells into the document, place your cursor at the end of the text and press . Your cursor will then be positioned at the beginning of the new ItemNumbered cell that was just created:
An automatic numbering object is inserted at the beginning of the text. As you can see in this screen shot, it is inserted flush with the rest of the text. You can type in additional spaces or punctuation as desired: