Update readme

docs/rules/no-todo-implementation.md

@@ -2,7 +2,7 @@
 
 Translations: [Français](https://github.com/avajs/ava-docs/blob/master/fr_FR/related/eslint-plugin-ava/docs/rules/no-todo-implementation.md)
 
-`test.todo` is a method that AVA proposes to enumerate test cases that have yet to be implemented. It is not meant to be passed a function to implement the test, and if given one, AVA will throw an error. If you added an implementation, then you are probably meaning to remove the `todo` modifier.
+[`test.todo()`](https://github.com/avajs/ava#test-placeholders-todo) is intended for planning tests. It's not meant to be passed a function to implement the test, and if given one, AVA will throw an error. If you added an implementation, you probably meant to remove the `todo` modifier.
 
 
 ## Fail