Add initial grid to creators
Merge branch 'master' of https://github.com/wdi2-hk/wdi2-hk.github.io
Merge branch 'master' of https://github.com/wdi2-hk/wdi2-hk.github.io
Add skyline background to header
Merge branch 'master' of https://github.com/wdi2-hk/wdi2-hk.github.io
Fix header image