Correct import/export example docker image names

Author: markhobson

README.md

@@ -15,13 +15,13 @@ docker run -it --rm markhobson/sqlpackage
 To import bacpac file `/backups/db.bacpac` to local database `db` with username `sa` and password `password`:
 
 ```bash
-docker run -it --rm -v /backups:/data --network=host sqlpackage \
+docker run -it --rm -v /backups:/data --network=host markhobson/sqlpackage \
     /a:Import /tsn:tcp:localhost /tdn:db /tu:sa /tp:password /sf:/data/db.bacpac
 ```
 
 To export local database `db` with username `sa` and password `password` to bacpac file `/backups/db.bacpac`:
 
 ```bash
-docker run -it --rm -v /backups:/data --network=host sqlpackage \
+docker run -it --rm -v /backups:/data --network=host markhobson/sqlpackage \
     /a:Export /ssn:tcp:localhost /sdn:db /su:sa /sp:password /tf:/data/db.bacpac
 ```