Add disclaimer for Node version (#36)

* Update README.md

* Update README.md
diff --git a/README.md b/README.md
index 6a18821..77b9ce9 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,11 @@
 # wskdb: The OpenWhisk Debugger
 
-For documenation on the client, consult [here](client/README.md).
\ No newline at end of file
+For documenation on the client, consult [here](client/README.md).
+
+## ** Disclaimer **
+
+According to the author of the debugger, Nick Mitchell, the debugger currently requires **Node 6 to 6.2**.
+
+**Anything higher than 6.3 won't work.**
+
+The community would welcome someone who can help us move this debugger to newer Node versions; however, Nick indicated there were some known issues that prevented him from doing this without large changes.