review modifications

Signed-off-by: alexmerlin <alex.merlin.1985@gmail.com>

Author: alexmerlin

docs/book/v5/upgrading.md

@@ -1,17 +1,24 @@
 # Upgrades
 
-Dotkernel API does not provide an automatic upgrade path. Instead, the recommended procedure is to manually implement
-each modification listed in [releases](https://github.com/dotkernel/api/releases). Additionally, releases info can also
-be accessed as an [RSS](https://github.com/dotkernel/api/releases.atom) feed.
+Dotkernel API does not provide an automatic upgrade path.
+
+Instead, the recommended procedure is to manually implement
+each modification listed in [releases](https://github.com/dotkernel/api/releases).
+
+Additionally, releases info can also be accessed as an [RSS](https://github.com/dotkernel/api/releases.atom) feed.
 
 ## Upgrade procedure
 
-Once you clone Dotkernel API, you will find a CHANGELOG.md file in the root of the project. This contains a list of
-already implemented features in reversed chronological order. You can use this file to track the version your copy of
-Dotkernel API is at.
+Once you clone Dotkernel API, you will find a [CHANGELOG.md](https://github.com/dotkernel/api/blob/5.0/CHANGELOG.md)
+file in the root of the project.
+
+This contains a list of already implemented features in reversed chronological order.
+
+You can use this file to track the version your copy of Dotkernel API is at.
 
 When there is a new release, you need to run through it and implement in your project the modifications from each pull
 request.
 
-Finally, copy the release info and paste it at the beginning of your project's CHANGELOG.md file. This way you will be
-able to track your API's version info and keep your project up-to-date.
+Finally, copy the release info and paste it at the beginning of your project's CHANGELOG.md file.
+
+This way you will be able to track your API's version info and keep your project up-to-date.