Bump version to 4.0.3

Add links to documentation

Rename LICENSE

Update README

Make author avatar optional

Add Jekyll v3.3 as dependency

Simplify example site's `Gemfile`

Add sample home page to example site

Create home page layout with paginated recent posts

Update regex for spec.files and remove bindir and executables

Bump version to 4.0.2

Remove `http://localhost:4000` from `site.url` as it is automatically set with `jekyll serve`

Update gem dependencies
- Add Jekyll plugins needed for the theme to .gemspec
- Remove Jekyll plugin gems from example site as they are installed with the theme

Fix image path typos

Remove category

Replace base_path with `absolute_url` filter where possible

Don't prepend `author.avatar` paths with `/` when path contains `://`

Remove `pre` from version and bump to 4.0.1

Update .gemspec

Update version to 4.0.0.pre