minor #13802 Typo fix : developped ⮞ developed (Levure)

This PR was merged into the 4.4 branch.

Discussion
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Typo fix : developped ⮞ developed

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e9fe5d4 Typo fix : developped ⮞ developed

Author: javiereguiluz

setup/symfony_server.rst

@@ -19,7 +19,7 @@ The Symfony server is part of the ``symfony`` binary created when you
 
 .. note::
 
-    The Symfony binary is developped internally at Symfony. If you want to
+    The Symfony binary is developed internally at Symfony. If you want to
     report a bug or suggest a new feature, please create an issue on
     `symfony/cli`_.