Adding note to readme
diff --git a/README.md b/README.md
index 8c0cc0a..6931ef4 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,7 @@
     $ mvn clean
     $ mvn compile
 
+    $ NOTE: installing maven for the first time may switch java version from 1.7 to 1.6 causing cassandra to not run
 
 Dependencies
 ------------