chore: Update Slack references to point to new Discord url

.github/CODE_OF_CONDUCT.md

@@ -1,7 +1,7 @@
 # Vendure Code of Conduct
 
 ## Scope
-This code of conduct applies to those who wish to contribute to the Vendure project (any repo under the [vendure-ecommerce](https://github.com/vendure-ecommerce) organization) by way of issues and pull requests. It also applies to official project communications channels such as Slack.
+This code of conduct applies to those who wish to contribute to the Vendure project (any repo under the [vendure-ecommerce](https://github.com/vendure-ecommerce) organization) by way of issues and pull requests. It also applies to official project communications channels such as Discord.
 
 ## Standards
 

README.md

@@ -10,7 +10,7 @@ A headless [GraphQL](https://graphql.org/) ecommerce framework built on [Node.js
 
 * [Getting Started](https://www.vendure.io/docs/getting-started/): Get Vendure up and running locally in a matter of minutes with a single command
 * [Live Demo](https://demo.vendure.io/)
-* [Vendure Slack](https://join.slack.com/t/vendure-ecommerce/shared_invite/zt-1exzio25w-vjL5TYkyJZjK52d6jkOsIA) Join us on Slack for support and answers to your questions
+* [Vendure Discord](https://www.vendure.io/community) Join us on Discord for support and answers to your questions
 
 ## Structure
 

packages/create/templates/readme.hbs

@@ -5,7 +5,7 @@ This project was generated with [`@vendure/create`](https://github.com/vendure-e
 Useful links:
 
 - [Vendure docs](https://www.vendure.io/docs)
-- [Vendure Slack community](https://join.slack.com/t/vendure-ecommerce/shared_invite/zt-1exzio25w-vjL5TYkyJZjK52d6jkOsIA)
+- [Vendure Discord community](https://www.vendure.io/community)
 - [Vendure on GitHub](https://github.com/vendure-ecommerce/vendure)
 - [Vendure plugin template](https://github.com/vendure-ecommerce/plugin-template)