Use `@testing-library/jest-dom` in README.md

[vdsabev]

Hey folks! I'm just starting out with @testing-library/vue and since the README said You may also be interested in installing jest-dom I tried installing it, only to then find out it was moved to @testing-library/jest-dom, so I had to install the other one.

Perhaps this little change could save other people some time - I'd be happy if you considered accepting it.

Thanks for reading 😊

[codecov[bot]]

Codecov Report

Merging #172 (632546e) into master (8466f70) will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #172   +/-   ##
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  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines           90        90           
  Branches        28        28           
=========================================
  Hits            90        90           

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[github-actions[bot]]

:tada: This PR is included in version 5.3.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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[github-actions[bot]]

:tada: This PR is included in version 6.6.0 :tada:

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

Your semantic-release bot :package::rocket: