Update history-graph.markdown (#9439)

Clarify confusion around where the `unit_of_measurement` should be defined.
This commit is contained in:
jeff-h 2019-05-12 22:14:23 +12:00 committed by Klaas Schoute
parent 26a243e11f
commit 160e188e56

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@ -14,12 +14,12 @@ History graph is a basic card, allowing you to display a graph for each of the e
<p class='img'>
<img src='/images/lovelace/lovelace_history_graph.png' alt='Screenshot of the history graph card for entities without a unit_of_measurement'>
Screenshot of the history graph card, when no `unit_of_measurement` is defined.
Screenshot of the history graph card, when the sensor has no `unit_of_measurement` defined.
</p>
<p class='img'>
<img src='/images/lovelace/lovelace_history_graph_lines.png' alt='Screenshot of the history graph card for entities with a unit_of_measurement'>
Screenshot of the history graph card, when a `unit_of_measurement` is defined.
Screenshot of the history graph card, when the sensor has a `unit_of_measurement` defined.
</p>
{% configuration %}