feat(docs): addition of markdownlint

[pranshuchittora]

Is your feature request related to a problem? Please describe.
Inconsistent formatting and linting of docs, throughout the project.

Motivation
While working for the PR #842, @ematipico pointed out some linting issues 👍 .
Hence linting must be prioritised, inspired by the Webpack.js.org project, which follows the same standards to lint the markdown.

Describe the solution you'd like
Addition of a markdown linting pipeline.

Describe alternatives you've considered
Can't say.

Let's discuss 👍