updated link to effect hook doc

Author: magenknurren

src/content/2/en/part2c.md

@@ -362,7 +362,7 @@ What's not immediately obvious, however, is where the command <em>axios.get</em>
 
 ### Effect-hooks
 
-We have already used [state hooks](https://react.dev/learn/state-a-components-memory) that were introduced along with React version [16.8.0](https://www.npmjs.com/package/react/v/16.8.0), which provide state to React components defined as functions - the so-called <i>functional components</i>. Version 16.8.0 also introduces [effect hooks](https://reactjs.org/docs/hooks-effect.html) as a new feature. As per the official docs:
+We have already used [state hooks](https://react.dev/learn/state-a-components-memory) that were introduced along with React version [16.8.0](https://www.npmjs.com/package/react/v/16.8.0), which provide state to React components defined as functions - the so-called <i>functional components</i>. Version 16.8.0 also introduces [effect hooks](https://react.dev/reference/react#effect-hooks) as a new feature. As per the official docs:
 
 > <i>The Effect Hook lets you perform side effects on function components.</i>
 > <i>Data fetching, setting up a subscription, and manually changing the DOM in React components are all examples of side effects.</i>