[rs] Add User Matrix Link
[![Build Status](https://github.com/gfx-rs/wgpu-rs/workflows/CI/badge.svg?branch=master)](https://github.com/gfx-rs/wgpu-rs/actions)
[![Crates.io](https://img.shields.io/crates/v/wgpu.svg)](https://crates.io/crates/wgpu)
[![Docs.rs](https://docs.rs/wgpu/badge.svg)](https://docs.rs/wgpu)
-[![Matrix](https://img.shields.io/matrix/wgpu:matrix.org)](https://matrix.to/#/#wgpu:matrix.org)
+
+[![Matrix](https://img.shields.io/badge/Dev_Matrix-%23wgpu%3Amatrix.org-blueviolet.svg)](https://matrix.to/#/#wgpu:matrix.org)
+[![Matrix](https://img.shields.io/badge/User_Matrix-%23wgpu--users%3Amatrix.org-blueviolet.svg)](https://matrix.to/#/#wgpu-users:matrix.org)
wgpu-rs is an idiomatic Rust wrapper over [wgpu-core](https://github.com/gfx-rs/wgpu). It's designed to be suitable for general purpose graphics and computation needs of Rust community.
