chore(): update readme

Author: kamilmysliwiec

README.md

@@ -22,20 +22,6 @@
 
 [GraphQL](https://graphql.org/) is a powerful query language for APIs and a runtime for fulfilling those queries with your existing data. It's an elegant approach that solves many problems typically found with REST APIs. For background, we suggest reading this [comparison](https://dev-blog.apollodata.com/graphql-vs-rest-5d425123e34b) between GraphQL and REST. GraphQL combined with [TypeScript](https://www.typescriptlang.org/) helps you develop better type safety with your GraphQL queries, giving you end-to-end typing.
 
-## Installation
-
-If you are using `express` HTTP engine, install the following packages:
-
-```bash
-$ npm i --save @nestjs/graphql apollo-server-express graphql
-```
-
-In case of `fastify`, you should install `apollo-server-fastify` instead.
-
-```bash
-$ npm i --save @nestjs/graphql apollo-server-fastify graphql
-```
-
 ## Quick Start
 
 [Overview & Tutorial](https://docs.nestjs.com/graphql/quick-start)