Smiley face part 1
This example renders a simple smiley face using SVG circles. It shows a central yellow circle with a black outline, accompanied by two smaller black circles representing eyes, all positioned within a 960 by 500 canvas. The visualization is built with React, leveraging the `react` and `react-dom` libraries, and renders the graphic statically via inline SVG markup in the HTML file. The shape is defined declaratively through SVG elements with specified coordinates and radii, without any interactive or dynamic behaviors.