doc typos

docs/guide/extensions.md

@@ -6,8 +6,8 @@ Code style
 
 - Extension code style should be similar to [core framework code style](https://github.com/yiisoft/yii2/wiki/Core-framework-code-style).
 - In case of using getter and setter for defining a property it's preferred to use method in extension code rather than property.
-- All classes, methods and properties should be documented using phpdoc. Note that you can use markdown and like to API
-documents using `[[name()]]`.
+- All classes, methods and properties should be documented using phpdoc. Note that you can use markdown and link to properties and methods
+using the following syntax: e.g. `[[name()]]`, `[[name\space\MyClass::name()]]`.
 - If you're displaying errors to developers do not translate these (i.e. do not use `\Yii::t()`). Errors should be
   translated only if they're displayed to end users.