Update docs (#12714)

docs/docs/configuration/objects.md

@@ -0,0 +1,29 @@
+---
+id: objects
+title: Available Objects
+---
+
+import labels from "../../../labelmap.txt";
+
+Frigate includes the object models listed below from the Google Coral test data.
+
+Please note:
+
+- `car` is listed twice because `truck` has been renamed to `car` by default. These object types are frequently confused.
+- `person` is the only tracked object by default. See the [full configuration reference](reference.md) for an example of expanding the list of tracked objects.
+
+<ul>
+  {labels.split("\n").map((label) => (
+    <li>{label.replace(/^\d+\s+/, "")}</li>
+  ))}
+</ul>
+
+## Custom Models
+
+Models for both CPU and EdgeTPU (Coral) are bundled in the image. You can use your own models with volume mounts:
+
+- CPU Model: `/cpu_model.tflite`
+- EdgeTPU Model: `/edgetpu_model.tflite`
+- Labels: `/labelmap.txt`
+
+You also need to update the [model config](advanced.md#model) if they differ from the defaults.