Added link to series ID search page to menu
Merge pull request #9 from mcoulthurst/master

Added link to series ID search page to menu
Changes sample to PPI dataset
Added charts.css to Slice page

Fixes issue with large space under chart
Merge pull request #10 from mcoulthurst/master

PPI sample dataset
Merge pull request #11 from ONSdigital/master

Sample changes for Series ID