Update correlation how-to-guide
Remove redundant comment
Merge pull request #282 from matthewdunsdon/web/feature/correlation-how-to

Update correlation how-to-guide
removed demos and examples from site
removed unused controller for examples
Merge pull request #283 from seanworkcode/feature/remove-demos

removed demos and examples from site
Updated index page for how-to guides
updated how to guides to use sticky nav to return to top of page
added raw data and extract data API directive
Removed chart title references from website
standardized the guides
updated the width of the indent to increase uniformaty
Merge pull request #284 from seanworkcode/feature/how-to-guide-index-page

Updated index page for how-to guides
Update webpage to use crossfilter 1.3.11
Merge branch 'feature/standarize-guides' of https://github.com/seanworkcode/insight into feature/single-page-how-to
updated legend how-to guide to display series title
Merge pull request #288 from seanworkcode/feature/standarize-guides

Feature/standarize guides
Fixed merge conflict
Merge branch 'gh-pages-dev' of https://github.com/ScottLogic/insight into feature/single-page-how-to
Updated how-to guides to remove references to chart title