tool tip improvement for github

[kranthivakati]

when we mouse over on the top icon's in the web site like github,npm,packagist etc
here title of the github need's to be fixed
expected it should be "github Repository" but actually it is "Main Repository"
suppose if a blind people accessing this application using talkback in that case it will say main repository which means nothing so kindly change it to github repository.
->please refer this picture and made if possible

[raohassan57]

I would like to take this issue Assig this to me