Updating all-in-one path (#4234)

Signed-off-by: Jim Van Fleet <jim@jimvanfleet.com>

## Which problem is this PR solving?
- Resolves #4230 

## Short description of the changes
- Updating the document to include the updated all-in-one path
- Adding one additional comment for those not briefed on kustomize

Signed-off-by: Jim Van Fleet <jim@jimvanfleet.com>

examples/hotrod/kubernetes/kustomization.yaml

@@ -4,7 +4,8 @@ kind: Kustomization
 bases:
 # If you only want the hotrod application, uncomment this line and comment out jaeger-all-in-one
 #  - base/hotrod
-  - base/jaeger
+# Leaving this uncommented will install both hotrod and an example all-in-one
+  - base/jaeger-all-in-one
 
 namespace: example-hotrod