Automated documentation update (#202)

Automated documentation update [skip ci]
Co-authored-by: github-actions <github-actions@github.com>

src/docker-in-docker/README.md

@@ -20,6 +20,7 @@ Create child containers *inside* a container, independent from the host's docker
 | version | Select or enter a Docker/Moby Engine version. (Availability can vary by OS version.) | string | latest |
 | moby | Install OSS Moby build instead of Docker CE | boolean | true |
 | dockerDashComposeVersion | Default version of Docker Compose (v1 or v2) | string | v1 |
+| azureDnsAutoDetection | Allow automatically setting the dockerd DNS server when the installation script detects it is running in Azure | boolean | true |