New CLI installation instructions

docs/shared-content-source/docs/modules/get-started/pages/prepare-development-environment.adoc

@@ -19,29 +19,21 @@ First, make sure that you have the following installed:
 
 == Download and install the Cloudflow CLI
 
-Using one of the links below, download the Cloudflow CLI appropriate for your development platform.
-Install it on your local system by unzipping the archive and moving the executable into your `PATH`.
+Install the Cloudflow CLI using the official installer:
 
-* https://bintray.com/lightbend/cloudflow-cli/download_file?file_path=kubectl-cloudflow-{kubectl-plugin-version}-linux-amd64.tar.gz[Linux]
-
-* https://bintray.com/lightbend/cloudflow-cli/download_file?file_path=kubectl-cloudflow-{kubectl-plugin-version}-darwin-amd64.tar.gz[MacOS]
-
-* https://bintray.com/lightbend/cloudflow-cli/download_file?file_path=kubectl-cloudflow-{kubectl-plugin-version}-windows-amd64.tar.gz[Windows]
-
-Please make sure you have the executable in your path with proper permission settings. 
-For Linux or MacOS, put the executables in `/usr/local/bin` with permission settings of `755`.
+....
+curl -sL http://cloudflow.io/docs/get.sh | sh
+....
 
-[NOTE] 
-====
-On MacOS Catalina and later, the default behavior is to not allow unsigned executables downloaded from the internet. 
-It is planned to sign the executable with an Apple developer certificate to fix this but, in the mean time, there is a very simple workaround.
-After downloading and unpacking the executable, please execute the following command to remove the "downloaded from the internet" filesystem flag that blocks the file from being executed:
+You can pass options to the installer script with `-s --` e.g.:
 
 ....
-xattr -d com.apple.quarantine [path to]/kubectl-cloudflow
+curl -sL http://cloudflow.io/docs/get.sh | sh -s -- --prefix=$HOME --version=2.0.22 --verbose
+curl -sL http://cloudflow.io/docs/get.sh | sh -s -- -P $HOME -v 2.0.22 -V
 ....
-+
-More details can be found in the https://github.com/lightbend/cloudflow/issues/47[associated issue].
-====
+
+If the installer script fails (e.g. there is no `curl` nor `wget` installed) downaload the binaries at the specific version from:
+
+* https://bintray.com/lightbend/cloudflow-cli/kubectl-cloudflow
 
 ifdef::review[Reviewers:still need recommendations for Windows.]

tools/get.sh

@@ -4,7 +4,6 @@
 # `get.sh` is a simple one-liner shell script to
 # Install the official Cloudflow kubectl plugin
 #
-# TODO review instructions when is live
 #   $ curl -sL http://cloudflow.io/docs/get.sh | sh
 #
 # Options may be passed to the shell script with `-s --`: