Install and configure components manually

[Ritianne]

What content needs to be created or modified?

Instead of using the init command to install everything on its own, create a guide on how to install Redis and Zipkin containers manually to allow for configurations such as Redis version.

Describe the solution you'd like

A docker script to create container for Redis and Zipkin separately where the Redis version can be decided by the user.

Where should the new material be placed?

In the installation docs

The associated pull request from dapr/dapr, dapr/components-contrib, or other Dapr code repos

https://docs.dapr.io/getting-started/install-dapr-selfhost/

Additional context