diff --git a/UniStore-example.md b/UniStore-example.md
index e60d406..85eaf3b 100644
--- a/UniStore-example.md
+++ b/UniStore-example.md
@@ -1,4 +1,4 @@
-Here is an example UniStore with one app
+Here is an example UniStore with one app. Note that UniStore files are actually JSON files with a different extension, so all rules of JSON files apply, you can use tools such as http://jsonformatter.curiousconcept.com check if your file is valid JSON.
 
 ```json
 {