Fix links.

Author: taylorotwell

documentation.md

@@ -1,47 +1,47 @@
 - Preface
-    - [Introduction](/docs/introduction)
-    - [Quickstart](/docs/quick)
-    - [Release Notes](/docs/releases)
-    - [Upgrade Guide](/docs/upgrade)
-    - [Contribution Guide](/docs/contributions)
+    - [Introduction](/docs/4.2/introduction)
+    - [Quickstart](/docs/4.2/quick)
+    - [Release Notes](/docs/4.2/releases)
+    - [Upgrade Guide](/docs/4.2/upgrade)
+    - [Contribution Guide](/docs/4.2/contributions)
 - Getting Started
-    - [Installation](/docs/installation)
-    - [Configuration](/docs/configuration)
-    - [Homestead](/docs/homestead)
-    - [Request Lifecycle](/docs/lifecycle)
-    - [Routing](/docs/routing)
-    - [Requests & Input](/docs/requests)
-    - [Views & Responses](/docs/responses)
-    - [Controllers](/docs/controllers)
-    - [Errors & Logging](/docs/errors)
+    - [Installation](/docs/4.2/installation)
+    - [Configuration](/docs/4.2/configuration)
+    - [Homestead](/docs/4.2/homestead)
+    - [Request Lifecycle](/docs/4.2/lifecycle)
+    - [Routing](/docs/4.2/routing)
+    - [Requests & Input](/docs/4.2/requests)
+    - [Views & Responses](/docs/4.2/responses)
+    - [Controllers](/docs/4.2/controllers)
+    - [Errors & Logging](/docs/4.2/errors)
 - Learning More
-    - [Authentication](/docs/security)
-    - [Billing](/docs/billing)
-    - [Cache](/docs/cache)
-    - [Core Extension](/docs/extending)
-    - [Events](/docs/events)
-    - [Facades](/docs/facades)
-    - [Forms & HTML](/docs/html)
-    - [Helpers](/docs/helpers)
-    - [IoC Container](/docs/ioc)
-    - [Localization](/docs/localization)
-    - [Mail](/docs/mail)
-    - [Package Development](/docs/packages)
-    - [Pagination](/docs/pagination)
-    - [Queues](/docs/queues)
-    - [Security](/docs/security)
-    - [Session](/docs/session)
-    - [SSH](/docs/ssh)
-    - [Templates](/docs/templates)
-    - [Unit Testing](/docs/testing)
-    - [Validation](/docs/validation)
+    - [Authentication](/docs/4.2/security)
+    - [Billing](/docs/4.2/billing)
+    - [Cache](/docs/4.2/cache)
+    - [Core Extension](/docs/4.2/extending)
+    - [Events](/docs/4.2/events)
+    - [Facades](/docs/4.2/facades)
+    - [Forms & HTML](/docs/4.2/html)
+    - [Helpers](/docs/4.2/helpers)
+    - [IoC Container](/docs/4.2/ioc)
+    - [Localization](/docs/4.2/localization)
+    - [Mail](/docs/4.2/mail)
+    - [Package Development](/docs/4.2/packages)
+    - [Pagination](/docs/4.2/pagination)
+    - [Queues](/docs/4.2/queues)
+    - [Security](/docs/4.2/security)
+    - [Session](/docs/4.2/session)
+    - [SSH](/docs/4.2/ssh)
+    - [Templates](/docs/4.2/templates)
+    - [Unit Testing](/docs/4.2/testing)
+    - [Validation](/docs/4.2/validation)
 - Database
-    - [Basic Usage](/docs/database)
-    - [Query Builder](/docs/queries)
-    - [Eloquent ORM](/docs/eloquent)
-    - [Schema Builder](/docs/schema)
-    - [Migrations & Seeding](/docs/migrations)
-    - [Redis](/docs/redis)
+    - [Basic Usage](/docs/4.2/database)
+    - [Query Builder](/docs/4.2/queries)
+    - [Eloquent ORM](/docs/4.2/eloquent)
+    - [Schema Builder](/docs/4.2/schema)
+    - [Migrations & Seeding](/docs/4.2/migrations)
+    - [Redis](/docs/4.2/redis)
 - Artisan CLI
-    - [Overview](/docs/artisan)
-    - [Development](/docs/commands)
+    - [Overview](/docs/4.2/artisan)
+    - [Development](/docs/4.2/commands)