Wrong url to github on top bar in documentation

[artur1989]

I'm submitting a...

[ ] Regression (a behavior that used to work and stopped working in a new release)
[ ] Bug report  
[ ] Performance issue
[ ] Feature request
[x] Documentation issue or request
[ ] Support request
[ ] Other... Please describe:

Current behavior

Link to github have wrong url.

Currently is https:/ngneat/specatator/

Expected behavior

Expected be https:/ngneat/spectator/

Minimal reproduction of the problem with instructions

STEPS TO REPRODUCE:

1. Click link to github in right top corner in navigation bar
   

[geromegrignon]

@NetanelBasal it was fixed with #347 but not deployed.

[NetanelBasal]

Thanks, deploying now.