add link to dockerhub

Author: jdkent

README.md

@@ -1,3 +1,5 @@
 # Dockerfiles
 
-We can use the image created by this Dockerfile to help test our task repositories for quality assurance of the data.
+We can use the image created by this Dockerfile to help test our task repositories for quality assurance of the data.
+
+You can find the image on dockerhub named [eprime_convert](https://hub.docker.com/r/jdkent/eprime_convert/)