Update contributors.js

[ritikamotwani]

The link has to be changed so that people can add themselves.
https://opencode18.github.io/Girls-who-code/static/js/contributors.json. This is the link from where the data has to be fetched.

[ritikamotwani]

The opencode18github.io has been redirected to http://opencode.ga/Girls-who-code/
Therefore due to some network errors the json(events and contributors both) are not fetched in their respective sections. @gauthamzz please look at this problem.

[gauthamzz]

@ritikamotwani Im aware of the problem. Its just a silly mistake due to https(json and other files are in https) and http(the domain we got is in http). So if you look at the console you see its corss side scripting problem.
@mubaris is out of college he has the credentials we will fix this soon.

[ritikamotwani]

Okay!
So should I send my pull request now with the link changed or after this problem is fixed?
If now I won't be able to provide you with the live link.