Terminology: entites: add screenshot (#34125)

source/getting-started/concepts-terminology.markdown

@@ -18,6 +18,8 @@ Once an {% term integration %} has been added, the hardware and/or data are repr
 
 Entities are the basic building blocks to hold data in Home Assistant. An {% term entity %} represents a {% term sensor %}, actor, or function in Home Assistant. Entities are used to monitor physical properties or to control other {% term entities %}. An {% term entity %} is usually part of a {% term device %} or a {% term service %}. Entities have {% term states %}.
 
+<p class='img'><img src='/images/getting-started/entities.png' style='border: 0;box-shadow: none;' alt="Screenshot showing the Entities table">Screenshot of the Entities table. Each line represents an entity.</p>
+
 ## Devices
 
 Devices are a logical grouping for one or more {% term entities %}. A {% term device %} may represent a physical {% term device %}, which can have one or more sensors. The sensors appear as entities associated with the {% term device %}. For example, a motion sensor is represented as a {% term device %}. It may provide motion detection, temperature, and light levels as {% term entities %}. Entities have states such as *detected* when motion is detected and *clear* when there is no motion.