Move charts to /charts
Add css
Move nvd3 library
Add css
Add blog specific CSS
Change font declaration
Revamp chart code

## HTML

* No inline styling for elements
* Charts are next to each other

## JS

* Data (JSON) are stored as a variable
* Function addPieChart() is used for both charts
Remove inline labels
No decimals for numbers
Change to donut
Add chart title in donut