Google has crawlers following links and thus, provided your site is in the index already and that the new content is linked to from within your site, Google will eventually discover it and add it to its index. More on this later.
Let's mark structured data to give Google more information about us like who we are, what are we do, what is our location etc. Use this JSON-LD schema generator. It helps all major web crawlers to get a better knowledge of your site. Fill in your information, get the code and add it to your site.