Update timeseries.md (#20795)

* Update timeseries.md

Update to docs-imagebox for the image link.

* Update docs/sources/guides/timeseries.md

Co-Authored-By: Marcus Olsson <olsson.e.marcus@gmail.com>

Co-authored-by: Marcus Olsson <accounts+github@marcus.se.net>

docs/sources/guides/timeseries.md

@@ -24,7 +24,7 @@ Temperature data like this is one example of what we call a *time series*—a se
 
 Tables are useful when you want to identify individual measurements but make it difficult to see the big picture. A more common visualization for time series is the _graph_, which instead places each measurement along a time axis. Visual representations like the graph make it easier to discover patterns and features of the data that otherwise would be difficult to see.
 
-<img src="/img/docs/example_graph.png" />
+{{< docs-imagebox img="/img/docs/example_graph.png" class="docs-image--no-shadow" max-width="850px" >}}
 
 Temperature data like the one in the example, is far from the only example of a time series. Other examples of time series are: