Fixed a typo in a docker command in README.md (oracle#593)

Changed "Newwork" to "Network", so the line:
   docker inspect --format '{{.NewworkSettings.IPAddress}}' <container-name>
is now:
   docker inspect --format '{{.NetworkSettings.IPAddress}}' <container-name>

OracleWebLogic/dockerfiles/12.2.1.3/README.md

@@ -94,7 +94,7 @@ To try a sample of a WebLogic Server image with a base domain configured, follow
 
   4. Run the administration console
 
-        $ docker inspect --format '{{.NewworkSettings.IPAddress}}' <container-name>
+        $ docker inspect --format '{{.NetworkSettings.IPAddress}}' <container-name>
         This returns the IPAddress (example xxx.xx.x.x) of the container.  Got to your browser and enter http://xxx.xx.x.x:8001/console