Try to add some more documentation to testables

Test: runtest --path frameworks/base/tests/testables/tests
Change-Id: I3dc39f05c3b91929a7d37b28879e31fb699f7334
diff --git a/tests/testables/src/android/testing/UiThreadTest.java b/tests/testables/src/android/testing/UiThreadTest.java
index e40e1d7..32a5824 100644
--- a/tests/testables/src/android/testing/UiThreadTest.java
+++ b/tests/testables/src/android/testing/UiThreadTest.java
@@ -20,8 +20,8 @@
 import java.lang.annotation.Target;
 
 /**
- * When applied to a class, all tests, befores, and afters will behave as if
- * they have @UiThreadTest applied to them.
+ * When applied to a class, all {@link org.junit.Test}s, {@link org.junit.After}s, and
+ * {@link org.junit.Before} will behave as if they have @UiThreadTest applied to them.
  */
 @Target({ElementType.METHOD, ElementType.TYPE})
 @Retention(RetentionPolicy.RUNTIME)