Add -n observability so kubectl get deployment command works correctly
@@ -35,7 +35,7 @@ At this point, there should be a `jaeger-operator` deployment available:
[source,bash]
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-$ kubectl get deployment jaeger-operator
+$ kubectl get deployment jaeger-operator -n observability
NAME DESIRED CURRENT UP-TO-DATE AVAILABLE AGE
jaeger-operator 1 1 1 1 48s
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