Merge pull request #81 from OrgCurrent/development

Merge to Master - Sprint 3
Merge pull request #82 from omkarv/ratinghistory

Changed rating history graph container scaling
Edited readme
Added links / description about tech stack
Reworded the introduction
Added screenshots
Updated app screenshots
Reduced screenshot size
Image display
Updated image links
Update README.md
Updated images to higher resolution
Added ipad and mobile image
Updated challenges
Updated setting up my2cents locally section
Modified incorrect reference to Azure
Updated reference to brew for clarity
Merge pull request #83 from omkarv/readme

Updated readme with project details
Centered demo images
Merge pull request #84 from OrgCurrent/development

Updated readme with project details