Update appcast.xml

Author: sbarex

appcast.xml

@@ -2,6 +2,33 @@
 <rss xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle" version="2.0">
     <channel>
         <title>Syntax Highlight</title>
+        <item>
+            <title>2.1.17</title>
+            <pubDate>lun, 9 gen 2023 22:20:00 +0100</pubDate>
+            <sparkle:minimumSystemVersion>10.15</sparkle:minimumSystemVersion>
+            <enclosure 
+                       type="application/octet-stream" 
+                       url="https://github.com/sbarex/SourceCodeSyntaxHighlight/releases/download/2.1.17/Syntax.Highlight.zip" 
+                       sparkle:shortVersionString="2.1.17" sparkle:version="66" 
+                       sparkle:edSignature="K9JDqSpHNfYUKb38/SOqMiJsjjOpKDIDE+ib3JrrYdyTNhwHN/RhgF+ASpyfPGBrx/qh+Bmej1rceKUUKbj/DQ==" length="13473305"
+            />
+            <description><![CDATA[
+                <h2>Release 2.1.17 (66)</h2>
+                <p>New features:</p>
+                <ul>
+                    <li>Added support for Crystal language (<code>.cr</code>).</li>
+                    <li>Added support for NextFlow language (<code>.nf</code>) as <i>as Groovy (Java)</i>.</li>
+                </ul>
+                <p>Bug fix:</p>
+                <ul>
+                    <li>Fixed a bug on standard settings.</li>
+                </ul>
+
+                <p><a href="https://github.com/sbarex/SourceCodeSyntaxHighlight/blob/master/CHANGELOG.md">See the complete changelog.</a></p>
+            ]]>
+            </description>
+        </item>
+        
         <item>
             <title>2.1.16</title>
             <pubDate>dom, 4 dic 2022 13:47:00 +0100</pubDate>