Management -> Content -> Add content -> Sample Pages
Enter the title as Sample Pages from [em][/em].
And fill in the desired content. Scanned page(s) and/ or text (HTML) can be included. The only tricky thing is if you have pictures mixed with text, such as in the Pegeen sample page.
The title really does need to have the [em] tags with square brackets, not angle-brackets.
Using the "URL Path Settings" near the bottom, make a "friendly" URL alias of the form:
samples/xxx.htm
Optionally preview with the "Preview" button.
Save your work with the "Save" button at the bottom of the page.