What can I say...you add text by typing it in. It will be plain text. Any fancy stuff you might do such as bold, underlining, etc. won't show up. Paragraphs, new lines, etc. won't show up either. There are html tags that do all the fancy stuff.
Assignment
Open your file called "template.htm.
Add additional text. Be sure to use multiple lines, formatting, etc.
Save the file.
View it using the browser.