Missing install instructions for QEMU

[stockholmux]

Path to page with content (do not include domain name):

/en/os/1.15.x/install/quickstart/

What content is incorrect?

The current instructions only list AWS as environments where Bottlerocket can be installed, this leads people to believe that that's the only place you can use Bottlerocket.

What should the content say or communicate?

For people who want to try it out, QEMU is an accessible and free starting point to get your hands on Bottlerocket.

[stockholmux]

Resources:

• https://github.com/bottlerocket-os/bottlerocket/blob/develop/QUICKSTART-LOCAL.md (good guide, but requires building from source)
• https://github.com/bottlerocket-os/bottlerocket/blob/develop/PROVISIONING-METAL.md#fetch-the-bottlerocket-image-for-bare-metal - has instructions on how to get the image with tuftool
• Easier ways to download bottlerocket image for bare metal bottlerocket#2779 - explains how to download w/o tuftool