message: Add install.sh invocation docs to DEVELOPER
diff: @@ -50,6 +50,17 @@ $ alias flvd=./target/debug/fluvio
  This avoid collision with released version of Fluvio.
  +## Download a published version of Fluvio
  +
  +If, instead of building Fluvio, you would prefer to just download it and get to work,
  +you can use our one-line installation script. You can use it to install the latest
  +release or prerelease, or to install a specific version:
  +
  +```
  +$ curl -fsS https://packages.fluvio.io/v1/install.sh | bash # Install latest release
  +$ curl -fsS https://packages.fluvio.io/v1/install.sh | VERSION=latest bash # Install latest pre-release
  +$ curl -fsS https://packages.fluvio.io/v1/install.sh | VERSION=x.y.z bash # Install specific version
  +```
  ## Setting Kubernetes up for running Fluvio in development
  