docs: add README.md file [#1]

README.md

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+<div align=center>
+
+# [CONVENTIONAL COMMITS PARSER]
+
+</div>
+
+## Introduction
+
+Just a little [shareable configuration](https://commitlint.js.org/#/reference-configuration) for [commitlint](https://commitlint.js.org/) to be able to validate the addition of an issue number to the end of a commit message that follows the [Conventional Commits](https://www.conventionalcommits.org/en/v1.0.0/) specification.
+
+The commit message structure must be:
+
+```
+<type>(<scope>): <description> [<issue-number>]
+```
+
+Where:
+
+- `<type>` is mandatory
+- `<scope>` is optional
+- `<description>` is mandatory
+- `<issue-number>` is mandatory 
+
+## Usage
+
+Just extend this configuration from your [commitlint configuration object](https://commitlint.js.org/#/reference-configuration?id=configuration-object-example) using the `extends` option. For example, create a `commitlint.config.js` file with the following content:
+
+```js
+module.exports = {
+    extends: ['@d3p1/commitlint-config-conventional']
+};
+```
+
+## Author
+
+Always happy to receive a greeting on:
+
+- [LinkedIn](https://www.linkedin.com/in/cristian-marcelo-de-picciotto/) 
+- [Twitter](https://twitter.com/___d3p1)
+
+
+## License
+
+This work is published under [MIT License](license).