Upgrade: bump markdownlint-cli from 0.23.0 to 0.23.1 (#67)

Bumps [markdownlint-cli](https://github.com/igorshubovych/markdownlint-cli) from 0.23.0 to 0.23.1.
- [Release notes](https://github.com/igorshubovych/markdownlint-cli/releases)
- [Commits](igorshubovych/markdownlint-cli@v0.23.0...v0.23.1)

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Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

package.json

@@ -46,7 +46,7 @@
     "chai": "^4.2.0",
     "dockerlint": "^0.3.9",
     "eslint": "^6.8.0",
-    "markdownlint-cli": "^0.23.0",
+    "markdownlint-cli": "^0.23.1",
     "mocha": "^7.1.2",
     "nock": "^12.0.3",
     "npm-run-all": "^4.1.5",