Remove cloud provider installation instructions entirely

(they are available at https://pwning.owasp-juice.shop/companion-guide/latest/part1/running.html#_run_options. This obsoletes juice-shop#2290)

Author: bkimminich

README.md

@@ -43,11 +43,6 @@ For a detailed introduction, full list of features and architecture overview ple
     - [Packaged Distributions](#packaged-distributions)
     - [Docker Container](#docker-container)
     - [Vagrant](#vagrant)
-    - [Amazon EC2 Instance](#amazon-ec2-instance)
-    - [Azure Container Instance](#azure-container-instance)
-    - [Google Compute Engine Instance](#google-compute-engine-instance)
-    - [Heroku](#heroku)
-    - [Gitpod](#gitpod)
 - [Demo](#demo)
 - [Documentation](#documentation)
     - [Node.js version compatibility](#nodejs-version-compatibility)
@@ -62,7 +57,7 @@ For a detailed introduction, full list of features and architecture overview ple
 
 ## Setup
 
-> You can find some less common installation variations in
+> You can find some less common installation variations as well as instructions to run Juice Shop on a variety of cloud computing providers in
 > [the _Running OWASP Juice Shop_ documentation](https://pwning.owasp-juice.shop/companion-guide/latest/part1/running.html).
 
 ### From Sources