update install docs for setting up Starport on a new machine

[barriebyron]

Is your feature request related to a problem? Please describe. from convo on Slack when @fadeev got a new machine

https://allinbits.slack.com/archives/CQPGA4WE9/p1648967803479459

2 steps you might need to do before installing the binary:

• sudo mkdir /usr/local/bin — on new machines this directory doesn’t exist. Otherwise, a user will get “Error: output directory missing: /usr/local/bin”

• sudo chown -R $(whoami) /usr/local/bin — the directory is not writable by default. Otherwise, a user will get “mv: rename ./starport to /usr/local/bin/starport: Permission denied”

Describe the solution you'd like update the docs

https://docs.starport.com/guide/install.html

(verify the technical setup in the docs/contributing too)

[barriebyron]

keep the migration topics, everything will be changed to Ignite including migration. The binary we install is ignite

[mondainai247]

@salmad3 I would like to handle this issue. Do you think it best to add this to the Website Install Docs? Or Change our Readme.md file on the main page to add an Installation section?

[salmad3]

Thanks @mondainai247. I think the README should have an installation section with the "default" installation steps (quick) and then link to install docs for the "official docs", which would include everything.

[mondainai247]

@salmad3 I am closing this issue as I have created a PR for this request and updated the readme.md

[salmad3]

@mondainai247 it's best to close the issue after the update is pushed.

We can also use keywords on the PR to auto-link issues (and then auto-close once the associated PR is merged).