Update data-validation.md

docs/configuration/data-validation.md

@@ -96,6 +96,7 @@ The following colors are supported:
 
 This is a mapping of models to [custom validators](../customization/custom-validation.md) against which an object is evaluated immediately prior to its deletion. If validation fails, the object is not deleted. An example is provided below:
 
+Example prevents the deletion of a site entry:
 ```python
 PROTECTION_RULES = {
     "dcim.site": [
@@ -108,3 +109,28 @@ PROTECTION_RULES = {
     ]
 }
 ```
+
+### Configuration via Web UI
+Example prevents the deletion of a device entry:
+
+```python
+{
+    "dcim.device": [
+        {
+            "status": {
+                "eq": "decommissioning"
+            }
+        }
+    ]
+}
+```
+[![NetBox UI](./media/screenshots/Configuration-History-Protection-rules-Example.png)](./media/screenshots/Configuration-History-Protection-rules-Example.png)
+
+If you navigate to a device, rack or site, you will find the path in the top right-hand corner:
+
+[![NetBox UI](./media/screenshots/Device-Type-Path-Example.png)](./media/screenshots/Device-Type-Path-Example.png)
+
+Examples:
+- dcim.device
+- dcim.site
+- dcim.rack