Feature/markdownlint custom config

[pedrogude]

PR Checklist

Please check if your PR fulfills the following requirements:

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Other... Please describe:

What is the current behavior?

Issue Number: #23

What is the new behavior?

Does this PR introduce a breaking change?

• Yes
• No

Other information

Affected paths:

• packages/certification-service/code/package.json

• packages/certification-service/code/package-lock.json

  • Updated minor version

• packages/certification-service/code/src/evaluate/markdownEvaluate.js

• packages/certification-service/code/src/verify/documentationLinter.js

• packages/certification-service/code/src/verify/lint.js

  • add new parameter (optional) to function with the custom markdownlint config object

• packages/certification-service/code/test/data/README.md

  • Add sample text for testing

• packages/certification-service/code/test/evaluate/markdownEvaluate.test.js

• packages/certification-service/code/test/verify/documentationLinter.test.js

• packages/certification-service/code/test/verify/lint.test.js

  • Added test cases

Tests summary: