Update heading for Docker context support

Change the section heading from "Configure Colima's Docker daemon" to "Support applications that are unaware of Docker context" to make it more accurate and reflective of the content.

Co-authored-by: dav3r <david.redmin@gwe.cisa.dhs.gov>

Author: 2 people

dev_envs/mac-env-setup.md

@@ -216,7 +216,7 @@ 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 ###
+### Support applications that are unaware of Docker context ###
 
 In your .zshrc profile add the following configuration.