Fixed typo in getting-started.mdx

[tomdevisser29]

Summary

Fixed typo in getting-started.mdx

Requirements (place an x in each [ ])

• I've read and understood the Contributing Guidelines and have done my best effort to follow them.
• I've read and agree to the Code of Conduct.

[salesforce-cla]

Thanks for the contribution! Before we can merge this, we need @tomdevisser29 to sign the Salesforce Inc. Contributor License Agreement.

[tomdevisser29]

I have signed the CLA, but the check doesn't seem to update automatically. Please, let me know if any further action is needed from my end.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.59%. Comparing base (da00f6c) to head (54ba09c).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2406   +/-   ##
=======================================
  Coverage   92.59%   92.59%           
=======================================
  Files          36       36           
  Lines        7472     7472           
  Branches      653      653           
=======================================
  Hits         6919     6919           
  Misses        545      545           
  Partials        8        8           

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[WilliamBergamin]

Thanks for signing the CLA 💯 this looks good to me