add svg in bootstrap code example

Example 1: responsive svg with bootstrap

.svg-content { 
	display: inline-block;
	position: absolute;
	top: 0;
	left: 0;
}

Example 2: responsive svg with bootstrap

<svg version="1.1" viewBox="0 0 500 500">
	<circle fill="#F7941E" stroke="#231F20" stroke-width="10" 
	cx="250" cy="250" r="200" opacity="0.6" />
</svg>