index.html: Change title to `Git Task List`

[li-boxuan]

Google Summer Of Code -> Google Summer of Code

https://github.com/coala/git-task-list/blob/master/app/index.html

[bekicot]

@li-boxuan That's right. But this app already renamed to "Git Task List".

Can you change the issue to "index.html: change to Git Task List".

[AkshJain99]

please assign me this issue
@li-boxuan