docs: improve README [skip ci]

Author: dunglas

README.md

@@ -1,17 +1,15 @@
 # API Platform Core
 
-API Platform Core is an easy to use and powerful system to create [hypermedia-driven REST](https://en.wikipedia.org/wiki/HATEOAS) and [GraphQL](https://graphql.org/) APIs.
+API Platform Core is an easy-to-use and powerful system to create [hypermedia-driven REST](https://en.wikipedia.org/wiki/HATEOAS) and [GraphQL](https://graphql.org/) APIs.
 It is a component of the [API Platform framework](https://api-platform.com) and it can be integrated
 with [the Symfony framework](https://symfony.com) using the bundle distributed with the library.
 
-It natively supports popular open formats including [JSON for Linked Data (JSON-LD)](https://json-ld.org), [Hydra Core Vocabulary](https://www.hydra-cg.com), [OpenAPI v2 (formerly Swagger) and v3](https://www.openapis.org), [HAL](https://tools.ietf.org/html/draft-kelly-json-hal-08) and [Problem Details](https://tools.ietf.org/html/rfc7807).
+It natively supports popular open formats including [JSON for Linked Data (JSON-LD)](https://json-ld.org), [Hydra Core Vocabulary](https://www.hydra-cg.com), [OpenAPI v2 (formerly Swagger) and v3](https://www.openapis.org), [JSON:API](https://jsonapi.org/), [HAL](https://tools.ietf.org/html/draft-kelly-json-hal-08) and [Problem Details](https://tools.ietf.org/html/rfc7807).
 
-Build a working and fully-featured CRUD API in minutes. Leverage the awesome features of the tool to develop complex and
-high performance API-first projects. Extend or override everything you want.
+Build a working and fully-featured web API in minutes. Leverage the awesome features of the tool to develop complex and
+high-performance API-first projects. Extend or override everything you want.
 
 [![GitHub Actions](https://github.com/api-platform/core/workflows/CI/badge.svg?branch=main)](https://github.com/api-platform/core/actions?query=workflow%3ACI+branch%3Amain)
-[![Codecov](https://codecov.io/gh/api-platform/core/branch/main/graph/badge.svg)](https://codecov.io/gh/api-platform/core/branch/main)
-[![Scrutinizer Code Quality](https://scrutinizer-ci.com/g/api-platform/core/badges/quality-score.png?b=main)](https://scrutinizer-ci.com/g/api-platform/core/?branch=main)
 
 ## Documentation