Using the following code snippet on a page to show an image and map widget:

{{mapillary>PNMvySavkGlk0-gT7WMaXw&500}}

Where you can get the image identifier hash on the Mapillary website and the 500 is the width in pixels. See also: http://www.mapillary.com/integrate.html

The above tag give you this result:

PNMvySavkGlk0-gT7WMaXw&500