doc: make perf_hooks Extends usage consistent

The docs use `* Extends: {type}` to define inheritance. This
commit updates the perf_hooks documentation to be consistent.

PR-URL: #33777
Reviewed-By: Rich Trott <[email protected]>
Reviewed-By: Luigi Pinca <[email protected]>

Author: cjihrig

doc/api/perf_hooks.md

@@ -317,11 +317,13 @@ added: v8.5.0
 The high resolution millisecond timestamp marking the starting time of the
 Performance Entry.
 
-## Class: `PerformanceNodeTiming extends PerformanceEntry`
+## Class: `PerformanceNodeTiming`
 <!-- YAML
 added: v8.5.0
 -->
 
+* Extends: {PerformanceEntry}
+
 _This property is an extension by Node.js. It is not available in Web browsers._
 
 Provides timing details for Node.js itself. The constructor of this class

tools/doc/type-parser.js

@@ -134,7 +134,7 @@ const customTypesMap = {
   'Histogram': 'perf_hooks.html#perf_hooks_class_histogram',
   'PerformanceEntry': 'perf_hooks.html#perf_hooks_class_performanceentry',
   'PerformanceNodeTiming':
-    'perf_hooks.html#perf_hooks_class_performancenodetiming_extends_performanceentry', // eslint-disable-line max-len
+    'perf_hooks.html#perf_hooks_class_performancenodetiming',
   'PerformanceObserver':
     'perf_hooks.html#perf_hooks_class_perf_hooks_performanceobserver',
   'PerformanceObserverEntryList':