Changed the colour of invited speakers heading.
Merge pull request #60 from Qwinix/invited-speakers

Invited speakers Heading Colour changed
Merge pull request #62 from Qwinix/master

Added Qwinix - Gold Sponsor
commit
Merge pull request #64 from SatishTalim/master

commit - minor text change
commit
Merge pull request #66 from SatishTalim/master

commit - minor
commit
Merge pull request #67 from SatishTalim/master

commit -minor
commit
Merge pull request #69 from SatishTalim/master

commit - sponsorship doc changed
fix indentation
jekyll enabled
fix index.html
remove large png file
optimise the background image

- reduce size to 1024x600
- imageoptim
fix the image urls
organise images
organize the sponsor images
fix staff images