Add scala, kotlin and groovy section, for now without any description

Runtime-Environments.md

@@ -58,3 +58,15 @@ look up the UID used by Isolate in `/etc/passwd` and fails. Setting `HOME=/box`
 seems to work.
 
 Python is currently installed with pip packages for TensorFlow support, so it can be used as an environment for deep learning assignments. This may change in the future.
+
+## Scala
+
+TODO
+
+## Groovy
+
+TODO
+
+# Kotlin
+
+TODO