Tag version 21.0.1 for 2 years of translations

Author: garbear

visualization.waveform/addon.xml.in

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <addon
   id="visualization.waveform"
-  version="21.0.0"
+  version="21.0.1"
   name="Waveform"
   provider-name="MrC">
   <requires>@ADDON_DEPENDS@</requires>