fix property name typo

kof · web-flow · commit c982bdae48aa · 2019-09-30T16:33:29.000+02:00
diff --git a/docs/jss-syntax.md b/docs/jss-syntax.md
@@ -234,7 +234,7 @@ Compiles to:
 
 ```css
 .button-0 {
-  border: url(image1.png), url(image2.png);
+  background: url(image1.png), url(image2.png);
 }
 ```
 

Original file line number	Diff line number	Diff line change
`@@ -234,7 +234,7 @@ Compiles to:`
`234`	`234`
`235`	`235`	```css
`236`	`236`	`.button-0 {`
`237`		`- border: url(image1.png), url(image2.png);`
	`237`	`+ background: url(image1.png), url(image2.png);`
`238`	`238`	`}`
`239`	`239`	```
`240`	`240`