update CLI get started command to use one line script

[joshuali925]

Description

We don't have npm yet, so either solution is ideal, but one line curl is less manual work for users. We can get rid of git requirement later to reduce dependencies if npm repo is taking too long

Issues Resolved

List any issues this PR will resolve, e.g. Closes [...].

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 18.51%. Comparing base (00175d9) to head (168abcb).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #162   +/-   ##
=======================================
  Coverage   18.51%   18.51%           
=======================================
  Files           3        3           
  Lines          54       54           
  Branches       19       18    -1     
=======================================
  Hits           10       10           
  Misses         44       44           

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