Restore some files that were mistakenly deleted in 92e22cd.

docs/3/modules/chgident.yml

@@ -0,0 +1,17 @@
+name: chgident
+
+description: |-
+  This module adds the `/CHGIDENT` command which allows server operators to change the username (ident) of a user.
+
+commands:
+- name: CHGIDENT
+  param_count: 2
+  oper_only: true
+  syntax: <nickname> <username>
+  description: |-
+    Changes the username (ident) of &lt;nickname&gt; to &lt;username&gt;.
+  example:
+  - description: |-
+      Changes the username (ident) of Sadie to wibble
+    text: |-
+      /CHGIDENT Sadie wibble

docs/3/modules/hostcycle.yml

@@ -0,0 +1,4 @@
+name: hostcycle
+
+description: |-
+  This module sends a fake disconnection and reconnection when a user's username (ident) or hostname changes to allow clients to update their internal caches.

docs/3/modules/ircv3_chghost.yml

@@ -0,0 +1,9 @@
+name: ircv3_chghost
+
+description: |-
+  This module provides the IRCv3 `chghost` client capability.
+
+client_caps:
+- name: '[chghost](https://ircv3.net/specs/extensions/chghost.html)'
+  description: |-
+    Notifies users when the username (ident) or hostname of a user they share a channel with changes.

docs/3/modules/setident.yml

@@ -0,0 +1,17 @@
+name: setident
+
+description: |-
+  This module adds the `/SETIDENT` command which allows server operators to change their username (ident).
+
+commands:
+- name: SETIDENT
+  param_count: 1
+  oper_only: true
+  syntax: <username>
+  description: |-
+    Changes the username (ident) of the user to &lt;username&gt;.
+  example:
+  - description: |-
+      Changes the username (ident) of the user to wibble
+    text: |-
+      /SETIDENT wibble