message: Make preliminary suggested changes to CONTRIBUTING.md
diff: @@ -491,6 +491,11 @@ nvm install
  nvm use
  ```
  +Or if you use the default macOS starting with Catalina shell `zsh`, try:
  +```zsh
  +sh -c "$(curl -fsSL https://raw.githubusercontent.com/nvm-sh/nvm/v0.37.0/install.sh)"
  +```
  +
  For those interested, you may also try out [avn](https://github.com/nvm-sh/nvm#deeper-shell-integration) to automatically switch to the node version that is required to run Superset frontend.
  We have upgraded our `package-lock.json` to use `lockfileversion: 2` from npm 7, so please make sure you have installed npm 7, too:
  