update release note

Eskibear · Eskibear · commit 2edbd86e1994 · 2018-06-19T23:54:23.000+08:00
diff --git a/PluginsAndFeatures/azure-toolkit-for-intellij/resources/META-INF/plugin.xml b/PluginsAndFeatures/azure-toolkit-for-intellij/resources/META-INF/plugin.xml
@@ -21,7 +21,7 @@
     <html>
       <h3>[3.8.0]</h3>
       <ul>
-        <li>Supported to run Spark jobs in Azure Data Lake cluster.</li>
+        <li>Supported to run Spark jobs in Azure Data Lake cluster (in private preview).</li>
         <li>Fixed some bugs.</li>
       <ul>
       <h3>[3.7.0]</h3>
