Update README.md

Link to cues docs

README.md

@@ -22,12 +22,13 @@ professional music production.
 * [iXML][ixml] production recorder metadata, including project, scene, and 
   take tags, recorder notes and file family information.
   * iXML `STEINBERG` sound library attributes.
-* Wave embedded cue markers, cue marker labels, notes and timed ranges as used
+* Wave embedded [cue markers][cues], cue marker labels, notes and timed ranges as used
   by Zoom, iZotope RX, etc.
 * Most of the common [RIFF INFO][info-tags] metadata fields.
 * The __wav format__ is also parsed, so you can access the basic sample rate 
   and channel count information.
-
+
+[cues]:https://wavinfo.readthedocs.io/en/latest/scopes/cue.html
 [bext]:https://wavinfo.readthedocs.io/en/latest/scopes/bext.html
 [smpte_330m2011]:https://wavinfo.readthedocs.io/en/latest/scopes/bext.html#wavinfo.wave_bext_reader.WavBextReader.umid
 [adm]:https://wavinfo.readthedocs.io/en/latest/scopes/adm.html