http://www.pmichaud.com/toast/ptart-1c.gif displays in the text as

All URLs ending in .gif, .jpg, .jpeg, and .png are automatically treated as image placeholders in Pm Wiki. The position of the image URL in a line determines how it will display in the page:
- an image URL at the beginning of a line displays the image at the left margin with text wrapped to the right
- an image URL at the end of a line displays the image at the right margin with text wrapped to the left
- an image URL in the middle of a line displays the image in line with the text
- an image URL on a line by itself is displayed by itself
Attach: markup. Otherwise, How To Upload Images describes the process of uploading images to a webserver.
Images may be specified as the target of a link using the double brackets markup by specifying an image URL as the text for a link (see Links To External Pages). For example, the image to the right of this paragraph is a link to the Strawberry Pop-Tart Blow-Torches page.
