Fixes #6887 Add Examples in the Lookup Expression Docs (#6898)

 Fixes #6887 Add Examples in the Lookup Expression Docs

Co-authored-by: joel <joelmcguire@email.arizona.edu>

docs/rest-api/filtering.md

@@ -69,6 +69,12 @@ Numeric based fields (ASN, VLAN ID, etc) support these lookup expressions:
 | `gt` | Greater than |
 | `gte` | Greater than or equal to |
 
+Here is an example of a numeric field lookup expression that will return all VLANs with a VLAN ID greater than 900:
+
+```no-highlight
+GET /api/ipam/vlans/?vid__gt=900
+```
+
 ### String Fields
 
 String based (char) fields (Name, Address, etc) support these lookup expressions:
@@ -86,7 +92,17 @@ String based (char) fields (Name, Address, etc) support these lookup expressions
 | `nie` | Inverse exact match (case-insensitive) |
 | `empty` | Is empty (boolean) |
 
+Here is an example of a lookup expression on a string field that will return all devices with `switch` in the name:
+
+```no-highlight
+GET /api/dcim/devices/?name__ic=switch
+```
+
 ### Foreign Keys & Other Fields
 
 Certain other fields, namely foreign key relationships support just the negation
-expression: `n`.
+expression: `n`. Here is an example of a lookup expression on a foreign key, it would return all the VLANs that don't have a VLAN Group ID of 3203:
+
+```no-highlight
+GET /api/ipam/vlans/?group_id__n=3203
+```