3 files changed, 37 insertions, 3 deletions

diff --git a/24.md b/24.md
new file mode 100644
index 0000000..cb5d898
--- /dev/null
+++ b/24.md
@@ -0,0 +1,32 @@
+NIP-24
+======
+
+Extra metadata fields and tags
+------------------------------
+
+`draft` `optional` `author:fiatjaf`
+
+This NIP defines extra optional fields added to events.
+
+kind 0
+======
+
+These are extra fields not specified in NIP-01 that may be present in the stringified JSON of metadata events:
+
+  - `display_name`: a bigger name with richer characters than `name`. Implementations should fallback to `name` when this is not available.
+  - `website`: a web URL related in any way to the event author.
+  - `banner`: an URL to a wide (~1024x768) picture to be optionally displayed in the background of a profile screen.
+
+### Deprecated fields
+
+These are fields that should be ignored or removed when found in the wild:
+
+  - `displayName`: use `display_name` instead.
+  - `username`: use `name` instead.
+
+tags
+====
+
+These tags may be present in multiple event kinds. Whenever a different meaning is not specified by some more specific NIP, they have the following meanings:
+
+  - `r`: a web URL the event is referring to in some way
diff --git a/38.md b/38.md
index 378da1c..f1eddcd 100644
--- a/38.md
+++ b/38.md
@@ -57,3 +57,5 @@ Clients MAY display this next to the username on posts or profiles to provide li
 * Nostr music streaming services that update your music status when you're listening
 * Podcasting apps that update your music status when you're listening to a podcast, with a link for others to listen as well
 * Clients can use the system media player to update playing music status
+
+The `content` MAY include emoji(s), or [NIP-30](30.md) custom emoji(s). If the `content` is an empty string then the client should clear the status.
diff --git a/README.md b/README.md
index 5beff91..98f6ddb 100644
--- a/README.md
+++ b/README.md
@@ -161,12 +161,13 @@ Please update these lists when proposing NIPs introducing new event kinds.
 | `p`               | pubkey (hex)                         | relay URL, petname   | [01](01.md), [02](02.md) |
 | `a`               | coordinates to an event              | relay URL            | [01](01.md)              |
 | `d`               | identifier                           | --                   | [01](01.md)              |
-| `alt`             | Alt tag                              | --                   | [31](31.md)              |
+| `alt`             | summary                              | --                   | [31](31.md)              |
 | `g`               | geohash                              | --                   | [52](52.md)              |
 | `i`               | identity                             | proof                | [39](39.md)              |
 | `k`               | kind number (string)                 | --                   | [18](18.md), [72](72.md) |
 | `l`               | label, label namespace               | annotations          | [32](32.md)              |
 | `L`               | label namespace                      | --                   | [32](32.md)              |
+| `m`               | MIME type                            | --                   | [94](94.md)              |
 | `r`               | a reference (URL, etc)               | petname              |                          |
 | `r`               | relay url                            | marker               | [65](65.md)              |
 | `t`               | hashtag                              | --                   |                          |
@@ -175,8 +176,7 @@ Please update these lists when proposing NIPs introducing new event kinds.
 | `challenge`       | challenge string                     | --                   | [42](42.md)              |
 | `content-warning` | reason                               | --                   | [36](36.md)              |
 | `delegation`      | pubkey, conditions, delegation token | --                   | [26](26.md)              |
-| `description`     | badge description                    | --                   | [58](58.md)              |
-| `description`     | invoice description                  | --                   | [57](57.md)              |
+| `description`     | invoice/badge description            | --                   | [57](57.md), [58](58.md) |
 | `emoji`           | shortcode, image URL                 | --                   | [30](30.md)              |
 | `expiration`      | unix timestamp (string)              | --                   | [40](40.md)              |
 | `goal`            | event id (hex)                       | relay URL            | [75](75.md)              |