rewording to tags presence

Author: fernandolguevara

100.md

@@ -1,28 +1,33 @@
 NIP-100
 =======
 
-Querying Events by Tags Structure
+Querying Events by Tags Presence
 ---------------------------------
 
 `draft` `optional` `author:fernandolguevara` `requires:nip-12`
 
-This NIP allows clients to query events from relays where a specific tag is present in the event's structure.
+This NIP allows clients to query events from relays based on the presence or non-presence of specific tags.
 
+### Presense:
 The filter condition matches if there is at least one tag name in common with the filter and event.
 
+###  Non-Presence:
+The filter condition matches if there is at least one tag in the filter that are not present in the event.
+
 Example Subscription Filter
 ---------------------------
 
-Below is an example filter that matches events with a `g` tag in their structure:
+Below are some example filters that demonstrate tag presence and non-presence:
+
+1. Filter to match events with a `g` tag:
 
 ```json
 {
   "tags": ["g"]
 }
 ```
 
-Other filter example that matches events with an empty/non present `e` tag in their structure:
-
+2. Filter to match events without the presence of the `e` tag:
 
 ```json
 {