Fix typo in demo instructions.

Test Plan: Built & tested the CLI locally.

Reviewers: michelle, rcheng

Reviewed By: michelle

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

Differential Revision: https://phab.corp.pixielabs.ai/D10790

GitOrigin-RevId: fcc2a1a

demos/manifest.json

@@ -20,11 +20,11 @@
     "px-kafka": {
         "description": "Microservice demo that uses Kafka to communicate between 3 services.",
         "instructions": [
-            "The px-kafka microservice may take a few more minutes to fully finish starting up.",
+            " px-kafka may take a few more minutes to fully finish starting up.",
             " Run `kubectl -n px-kafka get svc` to get the external IPs.",
             " When using minikube, run 'minikube tunnel' in order to ensure the external IP is accessible.",
-            " To see the demo's front end, visit the `apache` extenral IP (with port).",
-            " To start a load test, visit the `load-test` external IP (with port)."
+            " To see the demo's front end, visit the `apache` external IP (with port).",
+            " To start a load test, visit the `load-test` external IP (with port) and press the `Start Swarming` button`."
         ]
     }
 }