function getSRC() {
			if (source.startsWith("http://") || source.startsWith("https://")) {
				return source;
			}

			/*
			 * for convenience, you only need to use the image's name in the shortcode,
			 * and this will handle appending the full path to it
			 */
			return path.join("./src/assets/images/", source);
		}
Resolves source
@returns {string} URL or a local file path