Set pygments CSS as descendants of highlight class.
Structure and style index page for posts.

- Show posts as unordered list with custom styling.
- Add posts class element in main stylesheet.
- Add styling for code elements.
Add bottom border to links.
Fix issue with code tag in pygments.
Add post template to layouts.

- The post template will used as layout for any posts.
Create custom tag generator.

- Add Tags section to YAML.
- Create tag and tags template layouts.
- Create custom generator for building the tags folder and file structure based of YAML front matter for posts.
Fix front page design for mobile.

- Hide datetime since titles might extend.
- Remove margin/padding from posts element.
Reference YAML tags keys correctly.
Add link to tags in nav menu.

- Wrap datetime in individual tag page with CSS class.
- Fix indentation in layout template.
Change page header values to page.title.

- Update title value when generating tag pages.
- Add header and wrap content in p tag.