Small changes to "classnames" tip (reactjs#1151)

Simek · alexkrolick · commit 5c3f61d3128b · 2018-10-05T14:41:13.000-07:00
Just two small changes on "Styling and CSS" page:
* tip regarding "classnames" has been placed in quote box to visually emphasize it
* link to "classnames" package now points to React related section on the page
diff --git a/content/docs/faq-styling.md b/content/docs/faq-styling.md
@@ -28,7 +28,9 @@ render() {
 }
 ```
 
-If you often find yourself writing code like this, [classnames](https://www.npmjs.com/package/classnames) package can simplify it.
+>Tip
+>
+>If you often find yourself writing code like this, [classnames](https://www.npmjs.com/package/classnames#usage-with-reactjs) package can simplify it.
 
 ### Can I use inline styles?
 

Original file line number	Diff line number	Diff line change
`@@ -28,7 +28,9 @@ render() {`
`28`	`28`	`}`
`29`	`29`	```
`30`	`30`
`31`		`-If you often find yourself writing code like this, [classnames](https://www.npmjs.com/package/classnames) package can simplify it.`
	`31`	`+>Tip`
	`32`	`+>`
	`33`	`+>If you often find yourself writing code like this, [classnames](https://www.npmjs.com/package/classnames#usage-with-reactjs) package can simplify it.`
`32`	`34`
`33`	`35`	`### Can I use inline styles?`
`34`	`36`