[ Minor Changes ] : Removes SRA logo from sponsorship page and adds functionality of downloading brochure

[aPR0T0]

Updates README.md with installation instructions

• Updates logo by removing the skull
• Updates scripts and css with tier resizing available
• Adds document section for pdfs or other documents
• Adds functionality of downloading brochure from sponsor's page

[aPR0T0]

Resolves #100, @amanchhaparia please review.