Add Bitwarden's cli bws as a pre-requisite int the docs (RedHatQE#2432)

* add bws pre-requisite to the docs

* add ref to unzip instalation

Author: rnetser

docs/GETTING_STARTED.md

@@ -55,3 +55,13 @@ The Complete list of environment dependencies can be found in [Dockerfile](../Do
 ## oc
 
 `oc` client should be downloaded from `consoleCliDownloads` resource of the cluster under test.
+
+## bws - Bitwarden CLI
+
+Bitwarden CLI should be installed on the machine running the tests. See [Secrets Manager CLI](https://bitwarden.com/help/secrets-manager-cli/#download-and-install).
+Bitwarden token should be set in the `ACCESS_TOKEN` environment variable.
+Ensure the `unzip` package is installed on your system, as it is required by the bws installation script.
+
+```bash
+curl -fsSL https://bws.bitwarden.com/install | sh
+```