minor #20031 [Finder] Add a note to the followLinks method (lkolndeep)

This PR was merged into the 5.4 branch.

Discussion
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[Finder] Add a note to the followLinks method

Add some explanations to followLinks method with a note including a little example.

Commits
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43878c3 Add a note to explain the goal of the followLinks method

Author: javiereguiluz

components/finder.rst

@@ -127,6 +127,10 @@ If you want to follow `symbolic links`_, use the ``followLinks()`` method::
 
     $finder->files()->followLinks();
 
+.. note::
+
+    Be careful, the ``followLinks`` method does not resolve links. This method makes the links to directories followed/traversed into. If we suppose a folder *followLinksFolder* which contains a folder with a file and a symlink of the folder *folder, file.txt and symlinkfolder*, thanks to the Finder component ``$finder->in('/home/user/followLinksFolder');`` will retrieve three elements *folder, folder/file.txt and symlinkfolder*. If, we use the ``followLinks`` method instead ``$finder->followLinks()->in('/home/user/followLinksFolder');``, we will retrieve also a fourth element *folder, folder/file.txt, symlinkfolder and symlinkfolder/file.txt*.
+
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