Add a note about PREs, update NIP 36 to point to NIP 32

36.md

@@ -9,12 +9,15 @@ Sensitive Content / Content Warning
 The `content-warning` tag enables users to specify if the event's content needs to be approved by readers to be shown.
 Clients can hide the content until the user acts on it.
 
+`l` and `L` tags MAY be also be used as defined in [NIP-32](32.md) with the `content-warning` namespace to support
+further qualification and querying.
+
 #### Spec
 
 ```
 tag: content-warning
 options:
- - [reason]: optional  
+ - [reason]: optional
 ```
 
 #### Example
@@ -26,6 +29,8 @@ options:
     "kind": 1,
     "tags": [
       ["t", "hastag"],
+      ["L", "content-warning"],
+      ["l", "reason", "content-warning"],
       ["content-warning", "reason"] /* reason is optional */
     ],
     "content": "sensitive content with #hastag\n",