Add directions to enable Java profiling. (#171)

Signed-off-by: Hannah Troisi <htroisi@pixielabs.ai>

Author: htroisi

content/en/04-tutorials/01-pixie-101/06-profiler.md

@@ -9,14 +9,30 @@ redirect_from:
 
 This tutorial will demonstrate how to use Pixie's Always-On Profiling feature to investigate a spike in CPU utilization, using a flamegraph to identify a performance issue within the application code.
 
-Pixie's profiling feature currently supports Go, C++, and Rust. Other language support coming soon.
+Pixie's continuous profiler currently supports Go, C++, and Rust. Java support is a beta feature and must be [manually enabled](#prerequisites-enabling-java-support). Other language support coming soon.
 
 <YouTube youTubeId="Zr-s3EvAey8"/>
 
 ## Prerequisites
 
 You will need a Kubernetes cluster with Pixie installed. If you do not have a cluster, you can create a minikube cluster and install Pixie using one of our [install guides](/installing-pixie/install-guides/).
 
+### Enabling Java Support
+
+Java support is a beta feature and must be manually enabled during the deployment of Pixie.
+
+To enable Java support when deploying Pixie with the [Pixie CLI](/installing-pixie/install-schemes/cli/), run:
+
+```
+px deploy --pem_flags=PL_PROFILER_JAVA_SYMBOLS=1
+```
+
+To enable Java support when deploying Pixie with [Helm](/installing-pixie/install-schemes/helm/), run:
+
+```
+helm install pixie pixie-operator/pixie-operator-chart --set deployKey=<deploy-key-goes-here> --set clusterName=<cluster-name> --namespace pl --create-namespace --set dataCollectorParams.customPEMFlags.PL_PROFILER_JAVA_SYMBOLS=true
+```
+
 ## Setup
 
 We are going to be working with GCP's [Online Boutique](https://github.com/GoogleCloudPlatform/microservices-demo), a microservices demo application for a web-based e-commerce app where users can browse and purchase items.