🔧 fix: missing set and response in example of global hook (#227)

Author: kravetsone

docs/life-cycle/overview.md

@@ -96,7 +96,7 @@ import { Elysia } from 'elysia'
 
 new Elysia()
     .get('/none', () => '<h1>Hello World</h1>')
-    .onAfterhandle(() => {
+    .onAfterhandle(({ response, set }) => {
         if (isHtml(response))
             set.headers['Content-Type'] = 'text/html; charset=utf8'
     })