minor #9743 Fixed a build problem in security.rst (javiereguiluz)

This PR was merged into the 4.0 branch.

Discussion
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Fixed a build problem in security.rst

Fixes this build issue: https://travis-ci.org/symfony/symfony-docs/builds/375785518

Commits
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f5e8f93 Fixed a build problem in security.rst

Author: javiereguiluz

security.rst

@@ -131,7 +131,7 @@ You'll learn later how to deny access to certain URLs or controllers.
 
 .. note::
 
-    If you do not see toolbar, make sure you installed the :doc:`profiler </profile>`
+    If you do not see toolbar, make sure you installed the :doc:`profiler </profiler>`
     using this command:
 
     .. code-block:: terminal