Added the ChilliCream slack channel. (graphql#1065)

* Added the ChilliCream slack channel.

* Fixed alphabetic order.

Author: michaelstaib

src/content/community/Community-Users.md

@@ -44,6 +44,7 @@ Please be patient and polite. These are not explicitly user support channels, al
 The following channels are maintained by vendors, and may be a good place to find help on their products.
 
 * [Apollo Slack](http://apollostack.com/#slack)
+* [ChilliCream Slack](http://slack.chillicream.com/)
 * [Graphile Discord](https://discord.gg/graphile)
 * [Prisma Slack](https://slack.prisma.io/)