Add call to action to 18 blog post (#4542)

gaearon · web-flow · commit 707f22d25f5b · 2022-04-03T21:37:23.000+01:00
diff --git a/content/blog/2022-03-29-react-v18.md b/content/blog/2022-03-29-react-v18.md
@@ -244,6 +244,10 @@ With Strict Mode in React 18, React will simulate unmounting and remounting the
 >
 > `useInsertionEffect` is intended to be used by libraries, not application code.
 
+## How to Upgrade {#how-to-upgrade}
+
+See [How to Upgrade to React 18](https://reactjs.org/blog/2022/03/08/react-18-upgrade-guide.html) for step-by-step instructions and a full list of breaking and notable changes.
+
 ## Changelog {#changelog}
 
 ### React {#react}

Original file line number	Diff line number	Diff line change
`@@ -244,6 +244,10 @@ With Strict Mode in React 18, React will simulate unmounting and remounting the`
`244`	`244`	`>`
`245`	`245`	> `useInsertionEffect` is intended to be used by libraries, not application code.
`246`	`246`
	`247`	`+## How to Upgrade {#how-to-upgrade}`
	`248`	`+`
	`249`	`+See [How to Upgrade to React 18](https://reactjs.org/blog/2022/03/08/react-18-upgrade-guide.html) for step-by-step instructions and a full list of breaking and notable changes.`
	`250`	`+`
`247`	`251`	`## Changelog {#changelog}`
`248`	`252`
`249`	`253`	`### React {#react}`