Update home page (#18)

Author: kangasta

docs/README.md

@@ -4,8 +4,8 @@ This website contains examples on how to develop CI/CD pipelines and how to conf
 
 ## Installing Docker
 
-See [Get Docker](https://docs.docker.com/get-docker/) for installation instructions.
+Many of the examples provided on this website require Docker and Docker Compose to be installed on your development environment.
 
-If you use Docker a lot on Mac or Windows system, the recommended Docker Desktop is likely a good option for you. Note that, since January 2022, it has required paid subscription if used for commercial development.
+See [Get Docker](https://docs.docker.com/get-docker/) for official installation instructions. If you use Docker a lot on Mac or Windows system, the recommended Docker Desktop is likely a good option for you. Note that, since January 2022, it has required paid subscription, if used for commercial development.
 
 Alternatively, Windows users can [install Docker on top of WSL2](./docker/docker-on-wsl/). For Mac users there are alternatives, such as [Colima](https://github.com/abiosoft/colima), available.