docs: make sentence as a note

To make the tools stand out.

Author: kenjis

admin/next-upgrading-guide.rst

@@ -31,8 +31,9 @@ Project Files
 Some files in the **project space** (root, app, public, writable) received updates. Due to
 these files being outside of the **system** scope they will not be changed without your intervention.
 
-There are some third-party CodeIgniter modules available to assist with merging changes to
-the project space: `Explore on Packagist <https://packagist.org/explore/?query=codeigniter4%20updates>`_.
+.. note:: There are some third-party CodeIgniter modules available to assist
+    with merging changes to the project space:
+    `Explore on Packagist <https://packagist.org/explore/?query=codeigniter4%20updates>`_.
 
 Content Changes
 ===============

user_guide_src/source/installation/upgrade_452.rst

@@ -19,8 +19,9 @@ Project Files
 Some files in the **project space** (root, app, public, writable) received updates. Due to
 these files being outside of the **system** scope they will not be changed without your intervention.
 
-There are some third-party CodeIgniter modules available to assist with merging changes to
-the project space: `Explore on Packagist <https://packagist.org/explore/?query=codeigniter4%20updates>`_.
+.. note:: There are some third-party CodeIgniter modules available to assist
+    with merging changes to the project space:
+    `Explore on Packagist <https://packagist.org/explore/?query=codeigniter4%20updates>`_.
 
 All Changes
 ===========