cpu() virtualization fix (mac OS)

docs/cpu.html

@@ -574,12 +574,12 @@ si.cpuCurrentSpeed().then(data => console.log(data));</code></pre class="example
 si.cpuTemperature().then(data => console.log(data));</code></pre class="example">
 <pre class="example">
 {
-  main: 42,
+  main: 34,
   cores: [
     34, 35, 33, 32,
     37, 32, 35, 33
   ],
-  max: 42,
+  max: 37,
   socket: [ 16.8, 27.8 ],
   chipset: 49
 }