Update instruction for docker registry to make the images persistent on the docker host

rafabene · rafabene · commit cab7e99a01da · 2015-05-12T14:23:46.000-04:00
diff --git a/instructor/readme.adoc b/instructor/readme.adoc
@@ -96,10 +96,9 @@ Instructors should run a local registry to make all images locally available to
 
 [source, text]
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-docker run -d --name="docker-registry" -p 5000:5000 registry:2.0
+docker run -d --name="docker-registry" -p 5000:5000 -v /registry:/tmp/registry-dev registry:2.0
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-
 ## Build the Lab HTTPD Server image
 
 Make sure to change to the cloned repository/instructor first.
