Update README.md

Author: trioletas

README.md

@@ -15,6 +15,7 @@ Batteries included :raised_hands:
 - Docker :whale: configuration for production deployment, development and testing
 - GraphQL tools:
  - _GraphQL IDL_
+ - _Apollo Tracing_
  - _GraphiQL_
  - _GraphQL Voyager_
  - _GraphQL Playground_
@@ -107,6 +108,7 @@ In Docker:
 
 - GraphQL
  - [graphql-tools](https://github.com/apollographql/graphql-tools)
+ - [graphql-tracing](https://github.com/apollographql/apollo-tracing)
  - [apollo-server](https://github.com/apollographql/apollo-server)
  - [graphql-voyager](https://apis.guru/graphql-voyager)
  - [graphql-playground](https://github.com/graphcool/graphql-playground)