Replace <section> with <main>.
Misc. small changes:
- Correct the semantic on index.html (News) page. Limit to top 5 instead of 10 posts. Revised existing post entries to start from h3 instead of h2.
- Refactor to use Jekyll include tag to avoid code repetition for showing a single post.
- Use css to separate each article instead of using <br><hr><br>
- More faithful headings color to the original orderedlist/minimal theme.