suggest using discord to communicate

Author: yaacovCR

.github/CONTRIBUTING.md

@@ -77,10 +77,13 @@ ensure your pull request matches the style guides, run `npm run prettier`.
 
 - Pull requests are required to pass all tests and checks before they can be merged.
 - Ideally, pull requests should be reviewed by _at least two_ members of the [`@graphql/graphql-js-reviewers`](https://github.com/orgs/graphql/teams/graphql-js-reviewers) team before they are merged, preferably from separate organizations. For more complex pull requests, a larger cohort of reviewers is suggested.
-- If a reviewer hasn't responded in 48 hours, feel free to ping them `@graphql/graphql-js-reviewers`.
 - Any reviewer may request that the topic be brought for more in depth discussion at a [GraphQL JS Working Group meeting](https://github.com/graphql/graphql-js-wg/), where decisions will be made by consensus.
 - A PR that has been merged without discussion at a GraphQL JS Working Group meeting may be reverted if a more in depth discussion is later requested.
 
+## Discussion
+
+Feel free to reach out via the [graphql-js channel](https://discord.com/channels/625400653321076807/862957336082645006) on the [official Discord server](https://discord.graphql.org/) to discuss issues, pull requests, or anything graphql-js related.
+
 ## Release on NPM
 
 _Only core contributors may release to NPM._