Correct typo and add Quick Start instructions

[d2verb]

Fix typo in README and add a new section for Quick Start.

[amazon-inspector-tokyo]

⏳ I'm reviewing this pull request for security vulnerabilities and code quality issues. I'll provide an update when I'm done

[amazon-inspector-tokyo]

✅ I finished the code review, and didn't find any security or code quality issues.

[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 87.00%. Comparing base (84a633f) to head (14354b8).

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #36      +/-   ##
==========================================
+ Coverage   83.05%   87.00%   +3.95%     
==========================================
  Files           6        6              
  Lines         177      177              
  Branches       14       17       +3     
==========================================
+ Hits          147      154       +7     
+ Misses         30       16      -14     
- Partials        0        7       +7     

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