docs(ohif-cli.md): update ohif-cli.md

[dev-thakku]

Context

Changes & Results

• Corrected ohif-cli.md

Testing

• open a the docs
• visit a page development/ohif-cli
• check the section create-extension

Checklist

PR

• My Pull Request title is descriptive, accurate and follows the
  semantic-release format and guidelines.

Code

• My code has been well-documented (function documentation, inline comments,
  etc.)

Public Documentation Updates

• The documentation page has been updated as necessary for any public API
  additions or removals.

Tested Environment

• OS: Windows 10
• Node version: 16.17.1
• Browser: Chrome 114.0.5735.90

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[netlify]

✅ Deploy Preview for ohif-dev ready!

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[codecov]

Codecov Report

Merging #3461 (a8bdd1b) into master (e6f73a2) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #3461   +/-   ##
=======================================
  Coverage   38.27%   38.27%           
=======================================
  Files          82       82           
  Lines        1348     1348           
  Branches      303      303           
=======================================
  Hits          516      516           
  Misses        666      666           
  Partials      166      166           

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