chore: added more details to readme

README.md

@@ -1,8 +1,26 @@
 # @rdfjs/data-model
+[![build status](https://img.shields.io/github/workflow/status/rdfjs-base/data-model/Test)](https://github.com/rdfjs-base/data-model/actions/workflows/test.yaml)
+[![npm version](https://img.shields.io/npm/v/@rdfjs/data-model.svg)](https://www.npmjs.com/package/@rdfjs/data-model)
 
-[![Build Status](https://img.shields.io/github/workflow/status/rdfjs-base/data-model/CI)](https://github.com/rdfjs-base/data-model/actions/workflows/ci.yaml)
+A basic implementation of the [RDF/JS Data Model](http://rdf.js.org/data-model-spec/).
 
-[![npm version](https://img.shields.io/npm/v/@rdfjs/data-model.svg)](https://www.npmjs.com/package/@rdfjs/data-model)
+## Usage
+
+Use the following command to add the package as a dependency to your project:
+
+```bash
+npm install @rdfjs/data-model --save
+```
+
+The main entry point of the package exports an [RDF/JS DataFactory](http://rdf.js.org/data-model-spec/#datafactory-interface) instance.
+See the following lines on how to import and use the library:
+
+```
+import dataFactory from '@rdfjs/data-model'
 
-A basic implementation of the [RDF/JS Data Model](http://rdf.js.org/).
-See [the specification](http://rdf.js.org/) for further details.
+const quad = dataFactory.quad(
+  dataFactory.blankNode(),
+  dataFactory.namedNode('http://schema.org/name'),
+  dataFactory.literal('RDF/JS Data model')
+)
+```