Added following markups to html, and added the nav with it's pages.

1. At least 2 different level heading elements
2. <p> *more than 2 required
3. <ul> with <li> for navigation
4. <ul> with <li> for gallery
5. <div>
6. <a>
7. <img>
8. <strong> or <em>
9. <header>
10. <nav>
11. <footer>
12. <section>
13. <aside>
14. <article>