readme fix

Author: mikarinneoracle

app-dev/devops-and-containers/functions/java-helloworld-with-local-dev-and-oci-functions/README.md

@@ -118,7 +118,6 @@ docker build -t fra.ocir.io/<YOUR OCI TENANCY NAMESPACE>/helloworld-java:1
 </pre>
 
 In the docker build command above replace the <code>region</code> if necessary and the <code>&lt;YOUR OCI TENANCY NAMESPACE&gt;</code> with yours.
-
 <p>
 
 After building let's do <code>docker login</code> and <code>docker push</code> to push the container to the OCIR repo:
@@ -130,6 +129,16 @@ docker login ams.ocir.io -u '&lt;YOUR OCI TENANCY NAMESPACE&gt;/oracleidentitycl
 docker push fra.ocir.io/&lt;YOUR OCI TENANCY NAMESPACE&gt;/helloworld-java:1
 </pre>
 
+<p>
+The same as above but using OCI cli to get the &lt;YOUR OCI TENANCY NAMESPACE&gt; which is especially handy in scripting:
+
+<code>
+export namespace=$(oci os ns get | jq .data | tr -d '"')
+docker build -t fra.ocir.io/$namespace/helloworld-java:1 .
+docker push fra.ocir.io/$namespace/helloworld-java:1
+</code>
+
+<p>
 The last step is to create the Function Application and the function deployment for it. This can be easily done using the Cloud UI. 
 
 <p>