Add svg for Instagram

[tigerlily-he]

We cannot link to the Instagram page right now because sprites/sprites.svg is missing an SVG for Instagram. The solution is to find an svg in the similar style as the rest of the other social media logos and insert it in.

I tried to add this to the sprites.svg file:

<g id="icon-instagram">
	<path class="path1" d="M14.5 0h-13c-0.825 0-1.5 0.675-1.5 1.5v13c0 0.825 0.675 1.5 1.5 1.5h13c0.825 0 1.5-0.675 1.5-1.5v-13c0-0.825-0.675-1.5-1.5-1.5zM11 2.5c0-0.275 0.225-0.5 0.5-0.5h2c0.275 0 0.5 0.225 0.5 0.5v2c0 0.275-0.225 0.5-0.5 0.5h-2c-0.275 0-0.5-0.225-0.5-0.5v-2zM8 5c1.656 0 3 1.344 3 3s-1.344 3-3 3c-1.656 0-3-1.344-3-3s1.344-3 3-3zM14 13.5v0c0 0.275-0.225 0.5-0.5 0.5h-11c-0.275 0-0.5-0.225-0.5-0.5v0-6.5h1.1c-0.066 0.322-0.1 0.656-0.1 1 0 2.762 2.237 5 5 5s5-2.238 5-5c0-0.344-0.034-0.678-0.1-1h1.1v6.5z"></path>
</g>

but the result was a bit too small: