x/website: Have home page "Download Go" button point to the install page.

[stevetraut]

This is an issue requesting a change to documentation.

The "Download Go" button at https://golang.org/ links to a page that is probably not the best install experience for most new users. Now that we have a page from which the user can both download and install Go with simpler steps, we should link to that instead.

We could make the following changes:

• Have the button on the home page link to the install page at https://golang.org/doc/install
• Rename the "Download Go" button to "Install Go".

@andybons @dmitshur @spf13

[ipriver]

Honestly I'm kinda used to current page with different file options to download. It already includes a link to the install page with detailed steps, but yeah, I would agree that for new users, who want to simply download "go" and run it, this link might be easily missed. What if somehow highlight this information and make it more notable?
Think we need to discuss it more before making any changes.