Add link to docker.com in README.md

- Update README with the link to docker.com

Signed off by Author:    Deborah Gertrude Digges <deborah.gertrude.digges@gmail.com>

Signed-off-by: ddigges <deborahgertrude_digges@intuit.com>

README.md

@@ -51,7 +51,7 @@ Moby is NOT recommended for:
 
 - Application developers looking for an easy way to run their applications in containers. We recommend Docker CE instead.
 - Enterprise IT and development teams looking for a ready-to-use, commercially supported container platform. We recommend Docker EE instead.
-- Anyone curious about containers and looking for an easy way to learn. We recommend the docker.com website instead.
+- Anyone curious about containers and looking for an easy way to learn. We recommend the [docker.com](https://www.docker.com/) website instead.
 
 # Transitioning to Moby