Update README.md

Author: rdavidson

examples/practical-example/README.md

@@ -2,7 +2,7 @@
 This docker file automates the process described in the practial end to end example.
 It is purely meant for creating a basic test system very quickly.
 It creates a single Docker Image and starts the Kaldi master and a single worker. It also downloads a model. 
-Due to the size of the model it take take a while to create this docker image.
+Due to the size of the model it may take a while to build this docker image.
 
 #Steps to run
 Build the docker image