Basic SVG tutorial

I've created a webpage of basic SVG shapes and written some introductory tutorials (task 3) on the WHS xo wiki SVG page.

On the webpage, Chrome displays the stroke-array feature, which produces a dashed line, and a second conventional line, whereas Firefox does not. See my previous post for a brief discussion about SVG support

Reference:
Simple SVG Display: How to display SVG files in web pages

SVG Essentials by J. David Eisenberg O'Reilly, 2002
Main basis for the tutorials that I've written