Update accessibility documentation.

third_party/WebKit/LayoutTests/accessibility/readme.md

Index: third_party/WebKit/LayoutTests/accessibility/readme.md
diff --git a/third_party/WebKit/LayoutTests/accessibility/readme.md b/third_party/WebKit/LayoutTests/accessibility/readme.md
index ab9236d798411d5bcffb9c75c641022af3124df6..5dfce1dd9fdc74922ff02e0e4267acbd7644a885 100644
--- a/third_party/WebKit/LayoutTests/accessibility/readme.md
+++ b/third_party/WebKit/LayoutTests/accessibility/readme.md
@@ -2,11 +2,13 @@
 
 ## General Info on LayoutTests: Building and Running the Tests
 
-See https://chromium.googlesource.com/chromium/src/+/master/docs/testing/layout_tests.md for general info on how to build and run LayoutTests.
+See [Layout Tests](/docs/testing/layout_tests.md) for general
+info on how to build and run layout tests. 
 
 ## Old vs. New
 
 There are two styles of accessibility layout tests:
+
 * Using a ```-expected.txt``` (now deprecated)
 * Unit-style tests with assertions
 
@@ -22,4 +24,3 @@ The code that implements the bindings is here:
 * ```components/test_runner/web_ax_object_proxy.cc```
 
 You'll probably find bindings for the features you want to test already. If not, it's not hard to add new ones.
-