misc(readme) fix mixed content on the readme file

[EugeneHlushko]

This PR contains a:

• bugfix
• new feature
• code refactor
• test update
• typo fix
• metadata update

Motivation / Use-Case

We are getting an alert on webpack.js.org builds, we fetch webpack contrib plugins and loaders
README.md files automatically, and this one seems to have mixed content causing that issue.

Breaking Changes

Additional Info

[alexander-akait]

Need update lock file to avoid security problem

[EugeneHlushko]

Do you mean i go and yarn install and commit if any changes or you updated it on master and i need a rebase? @evilebottnawi

[alexander-akait]

Hi, rm -r package-lock.json && npm i and send and send a package-lock.json in this PR

[codecov]

Codecov Report

Merging #38 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff          @@
##           master    #38   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           2      2           
  Lines          11     11           
  Branches        4      4           
=====================================
  Hits           11     11

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[EugeneHlushko]

@evilebottnawi done

[alexander-akait]

Thanks!