link to the help article about PSI Viewer added

JetBrains · Apr 6, 2016 · f92f388 · f92f388
1 parent f210569
commit f92f388
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/CONTRIBUTING.mkdn b/CONTRIBUTING.mkdn
@@ -32,6 +32,9 @@ equivalent for the scala plugin itself at the moment but any of your questions
 are welcome on [intellij-scala gitter](https://gitter.im/JetBrains/intellij-scala)
 we will be glad to anwser them.
 
+[PSI Viewer](https://www.jetbrains.com/help/idea/2016.1/viewing-psi-structure.html) is an essential tool to
+dig into the structure of a source code.
+
 Some guidelines for code, commits and pull requests:
 - Make sure you have a youtrack issue number before you start working.
 - Reference the youtrack issue number in your commits.