Update README.md

BalioFVFX · web-flow · commit 1c39dea286dc · 2019-05-15T11:54:51.000+03:00
diff --git a/README.md b/README.md
@@ -54,7 +54,7 @@ startActivityForResult(intent, REQUEST_CODE);
         }
     }
 ```
-
+#### Note: Always check if the data is null otherwise exception may occur. For example if the user doesn't select a directory / file and closes the file explorer data will be null.
 <p float="left">
   <img src="https://i.imgur.com/n229g4p.png" width="300" />
   <img src="https://i.imgur.com/L0qowxq.png" width="300" /> 

Original file line number	Diff line number	Diff line change
`@@ -54,7 +54,7 @@ startActivityForResult(intent, REQUEST_CODE);`
`54`	`54`	`}`
`55`	`55`	`}`
`56`	`56`	```
`57`		`-`
	`57`	`+#### Note: Always check if the data is null otherwise exception may occur. For example if the user doesn't select a directory / file and closes the file explorer data will be null.`
`58`	`58`	`<p float="left">`
`59`	`59`	`<img src="https://i.imgur.com/n229g4p.png" width="300" />`
`60`	`60`	`<img src="https://i.imgur.com/L0qowxq.png" width="300" />`