update README

README.md

@@ -1,5 +1,4 @@
 [![GitHub Workflow Status](https://img.shields.io/github/workflow/status/cozodb/cozo/Build)](https://github.com/cozodb/cozo/actions/workflows/build.yml)
-[![Discord](https://img.shields.io/discord/1034464550927478886)](https://discord.gg/GFpjQ9m866)
 [![Crates.io](https://img.shields.io/crates/v/cozo)](https://crates.io/crates/cozo)
 [![GitHub](https://img.shields.io/github/license/cozodb/cozo)](https://github.com/cozodb/cozo/blob/main/LICENSE.txt)
 
@@ -70,7 +69,6 @@ if it has already been reported. If not, open a new issue.
 Please provide sufficient information so that we can diagnose the problem faster.
 
 Other discussions about Cozo should be in [GitHub discussions](https://github.com/cozodb/cozo/discussions).
-We also have a [Discord channel](https://discord.gg/GFpjQ9m866).
 
 ## Use cases