update README

README.md

@@ -6,6 +6,9 @@ Launching the Google Chrome
 docker-compose up -d
 ```
 
+Extra
+=====
+
 Good & stable vsync
 ```
 chrome://flags/
@@ -19,6 +22,13 @@ Check
 chrome://gpu/
 ```
 
+To see whether you have the best result, you should have stable 60 FPS at following tests
+```
+http://ie.microsoft.com/testdrive/Performance/FishIETank/Default.html
+http://www.vsynctester.com/
+```
+
+
 You may want to disable Google's VP8 & VP9 video codecs: "MSE & WebM VP9" and "WebM VP8"
 as there is no hardware decoding for them.
 To do this, install h264ify extension from