git remote: add page

[jorgeborges]

Adding git remote page.

[waldyrious]

is this really such a common use case? I'd suggest instead having the command to change the URL of a remote, which I personally have had to do more than once (e.g. after forgetting to make a clone of a github repo in the web interface before cloning to my machine, so I could push to it).

Otherwise, great addition!

[jorgeborges]

I took your recommendation @waldyrious, most people would probably prefer to explicitly fetch anyway.

git remote set-url is harder to remember too, just added it.

[waldyrious]

👍 :)

[rprieto]

It looks great, thanks for the contribution!