Merge pull request #87 from prashantchhabra89/heatmapper

Seasons and details
Update README.md
Update README.md
changed tour button to blue as mentors suggested
Added a button to show/hide Methodology
Merge pull request #88 from prashantchhabra89/jQueryFunctions

Changes requested from mentors
Merge remote-tracking branch 'origin/master' into heatmapper