Add latest version

[renich]

I am writing a simple Howto article for people to get around installing ipfs-update. The article will be outdated as soon as the version goes beyond v1.7.1.

It would be really cool to be able to tell people to download to just: curl -O https://dist.ipfs.io/ipfs-update/latest/ipfs-update_linux-amd64.tar.gz

I mean, just a symlink to the latest one; created at CD time?

That would rock. My article would live on for generations to come...

[skull-squadron]

Seriously. I don't want to have to write a script to scrape the web page.