diff --git a/README.md b/README.md
index ec55ab7..9f31a36 100644
--- a/README.md
+++ b/README.md
@@ -106,18 +106,36 @@ When experimenting with kinds, keep in mind the classification introduced by [NI
 
 ## Standardized Tags
 
-| name       | value                   | other parameters  | NIP                      |
-| ---------- | ----------------------- | ----------------- | ------------------------ |
-| e          | event id (hex)          | relay URL, marker | [1](01.md), [10](10.md)  |
-| p          | pubkey (hex)            | relay URL         | [1](01.md)               |
-| a          | coordinates to an event | relay URL         | [33](33.md), [23](23.md) |
-| r          | a reference (URL, etc)  |                   | [12](12.md)              |
-| t          | hashtag                 |                   | [12](12.md)              |
-| g          | geohash                 |                   | [12](12.md)              |
-| nonce      | random                  |                   | [13](13.md)              |
-| subject    | subject                 |                   | [14](14.md)              |
-| d          | identifier              |                   | [33](33.md)              |
-| expiration | unix timestamp (string) |                   | [40](40.md)              |
+| name           | value                                | other parameters     | NIP                      |
+| -------------- | ------------------------------------ | -------------------- | ------------------------ |
+| `a`            | coordinates to an event              | relay URL            | [33](33.md), [23](23.md) |
+| `d`            | identifier                           | --                   | [33](33.md)              |
+| `e`            | event id (hex)                       | relay URL, marker    | [1](01.md), [10](10.md)  |
+| `g`            | geohash                              | --                   | [12](12.md)              |
+| `i`            | identity                             | proof                | [39](39.md)              |
+| `p`            | pubkey (hex)                         | relay URL            | [1](01.md)               |
+| `r`            | a reference (URL, etc)               | --                   | [12](12.md)              |
+| `t`            | hashtag                              | --                   | [12](12.md)              |
+| `amount`       | millisats                            | --                   | [57](57.md)              |
+| `bolt11`       | `bolt11` invoice                     | --                   | [57](57.md)              |
+| `challenge`    | challenge string                     | --                   | [42](42.md)              |
+| `delegation`   | pubkey, conditions, delegation token | --                   | [26](26.md)              |
+| `description`  | badge description                    | --                   | [58](58.md)              |
+| `description`  | invoice description                  | --                   | [57](57.md)              |
+| `expiration`   | unix timestamp (string)              | --                   | [40](40.md)              |
+| `image`        | image URL                            | dimensions in pixels | [23](23.md), [58](58.md) |
+| `lnurl`        | `bech32` encoded `lnurl`             | --                   | [57](57.md)              |
+| `name`         | badge name                           | --                   | [58](58.md)              |
+| `nonce`        | random                               | --                   | [13](13.md)              |
+| `preimage`     | hash of `bolt11` invoice             | --                   | [57](57.md)              |
+| `published_at` | unix timestamp (string)              | --                   | [23](23.md)              |
+| `relay`        | relay url                            | --                   | [42](42.md)              |
+| `relays`       | relay list                           | --                   | [57](57.md)              |
+| `subject`      | subject                              | --                   | [14](14.md)              |
+| `summary`      | article summary                      | --                   | [23](23.md)              |
+| `thumb`        | badge thumbnail                      | dimensions in pixels | [58](58.md)              |
+| `title`        | article title                        | --                   | [23](23.md)              |
+| `zap`          | profile name                         | type of value        | [57](57.md)              |
 
 ## Criteria for acceptance of NIPs