Adding demo instructions and info

Change-Id: I2958747e5da047a1a3f26ab62eed5c5e57904463
diff --git a/.gitignore b/.gitignore
index e43b0f9..af56f61 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 .DS_Store
+.idea/