doc: document DisableHT AP setting

src/iwd.ap.rst

@@ -73,6 +73,11 @@ The group ``[General]`` contains general AP configuration.
        The time interval at which the AP starts a rekey for a given station. If
        not provided a default value of 0 is used (rekeying is disabled).
 
+   * - DisableHT
+     - Boolean value
+
+       Explicitly disable HT capabilities for this AP.
+
 Network Authentication Settings
 -------------------------------