Merge pull request #871 from vtexdocs/fix/hash-links-in-api-references

chore(api-reference): update the position in the sidebar when an api-…

src/pages/docs/api-reference/[slug].tsx

@@ -121,6 +121,19 @@ const APIPage: NextPage<Props> = ({
     }
   }, [])
 
+  useEffect(() => {
+    const handleHashChange = () => {
+      const newHash = window.location.hash.substring(1)
+      router.push(`${window.location.pathname}?endpoint=${newHash}`)
+    }
+
+    window.addEventListener('hashchange', handleHashChange)
+
+    return () => {
+      window.removeEventListener('hashchange', handleHashChange)
+    }
+  }, [router])
+
   useEffect(() => {
     setEndpointPagination(
       pagination[endpointPath] ? pagination[endpointPath] : pag