Permission examples

docs/reference/filter-rules.md

@@ -16,7 +16,7 @@
 }
 ```
 
-### Example
+### Examples
 
 ```json
 {
@@ -26,6 +26,22 @@
 }
 ```
 
+```json
+{
+	"owner": {
+		"_eq": "$CURRENT_USER"
+	}
+}
+```
+
+```json
+{
+	"datetime": {
+		"_lte": "$NOW"
+	}
+}
+```
+
 ## Relational
 
 You can target related values by nesting field names. For example, if you have a relational [Many-to-One](#)