Fix: CSS changes to better readability

### Changes

- [x] Fixed the line-height (was set to 1.5px)
- [x] Added Google font file for PT serif
- [x] Aligned dates and titles on the home page - [before](http://drp.io/akz/dzz/-/-) / [after](http://drp.io/akz/dz0/-/-)

Goes without saying - feel free to tweak the styles as per your taste :dancers: