Add resource to docker volumes (#6410)

* Update 101-volume-mounts.md

Add a link to help beginners understanding the subtle differences between `-v` and `--mount` flag.

* Update src/data/roadmaps/docker/content/104-data-persistence/101-volume-mounts.md

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Co-authored-by: Kamran Ahmed <kamranahmed.se@gmail.com>

src/data/roadmaps/docker/content/104-data-persistence/101-volume-mounts.md

@@ -34,6 +34,9 @@ docker run -d --mount source=my-volume,destination=/data your-image
 
 In both examples above, `my-volume` is the name of the volume we created earlier, and `/data` is the path inside the container where the volume will be mounted.
 
+> For an in-depth exploration of the `-v` and `--mount` flags, consult Docker's official guide on [Choose the -v or --mount flag](https://docs.docker.com/storage/bind-mounts/#choose-the--v-or---mount-flag).
+
+
 ## Sharing Volumes Between Containers
 
 To share a volume between multiple containers, simply mount the same volume on multiple containers. Here's how to share `my-volume` between two containers running different images: