Update .appcast with new tag ✨

Author: tankxu

.appcast.xml

@@ -1,6 +1,9 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <rss xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle" xmlns:dc="http://purl.org/dc/elements/1.1/" version="2.0">
   <channel>
+    <item>
+      <enclosure url="https://github.com/Coding/coding-sketch-toolkit/releases/download/v0.2.0/coding-toolkit.sketchplugin.zip" sparkle:version="0.2.0"/>
+    </item>
     <item>
       <enclosure url="https://github.com/Coding/coding-sketch-toolkit/releases/download/v0.1.0/coding-toolkit.sketchplugin.zip" sparkle:version="0.1.0"/>
     </item>