Apply suggestions from code review

Co-authored-by: kenjis <kenji.uui@gmail.com>

Author: colethorsen

user_guide_src/source/changelogs/v4.4.4.rst

@@ -36,7 +36,7 @@ This was fixed and is now working according to documentation. You can define you
 Filesystem Helper
 ====================================
 
-``get_filenames()`` now follows symlink folders, which it previously just returned
+:php:func:`get_filenames()` now follows symlink folders, which it previously just returned
 without following.
 
 ***************

user_guide_src/source/helpers/filesystem_helper.rst

@@ -164,7 +164,7 @@ The following functions are available:
     the second parameter to 'relative' for relative paths or any other non-empty value for
     a full file path.
 
-    Prior to v4.4.4, due to a bug, this function did not follow symlink folders.
+    .. note:: Prior to v4.4.4, due to a bug, this function did not follow symlink folders.
 
     Example: