Add gold sponsor

Adding gold sponsor , change the ajey photo and fix issue of invited
speaker image issue
Merge branch 'master' into gold-sponsor

Conflicts:
	code-of-conduct.html
	staff-information.html
removed duplicate image
fixed a typo error
renamed the josh software logo name
Merge pull request #3 from Qwinix/gold-sponsor

Gold sponsor
Merge pull request #62 from Qwinix/master

Added Qwinix - Gold Sponsor