Guide users to configure Docker daemon with Colima

Adds documentation for linking Colima with the Docker daemon. This ensures
Docker client tools communicate with Colima's managed Docker daemon,
essential for Docker-based applications like Molecule without Docker Desktop.
Includes the setup code snippet and its importance for better user understanding
and usability in development workflows.

dev_envs/mac-env-setup.md

@@ -216,6 +216,20 @@ To customize the VM's resources, such as CPUs, memory, and disk space:
     colima start --cpu 4 --memory 4 --disk 100
     ```
 
+### Configure Colima's Docker daemon ###
+
+In your .zshrc profile add the following configuration.
+
+```console
+# Set env variable for Colima compatibility with Docker
+export DOCKER_HOST=unix://$HOME/.colima/default/docker.sock
+```
+
+> **Note**
+> This configuration directs Docker client tools to communicate with the
+> Docker daemon managed by Colima, ensuring that Docker commands and
+> applications (e.g. Molecule) function as expected without Docker Desktop.
+
 ### Environment configuration ###
 
 For portability between computers and environments, you may want to switch