This area between the markup for this paragraph is where you will place your content for the paragraph. The opening markup starts the paragraph and the closing markup ends the paragraph. The new web standard is to have a closing for all markup code.
This is another paragraph. It is a good idea to break up your content into small paragraphs because it makes it easy to read. Some older versions of html will use all capitol letters to write the markup code, but the new standards is all lower case letters as you see here.