minor #12517 Add HTTPS to a URL (Arman-Hosseini)

This PR was submitted for the master branch but it was merged into the 4.3 branch instead (closes #12517).

Discussion
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Add HTTPS to a URL

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Commits
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11b6248 Add HTTPS to a URL

Author: javiereguiluz

setup.rst

@@ -281,7 +281,7 @@ Learn More
     setup/web_server_configuration
     setup/*
 
-.. _`Stellar Development with Symfony`: http://symfonycasts.com/screencast/symfony
+.. _`Stellar Development with Symfony`: https://symfonycasts.com/screencast/symfony
 .. _`Install Composer`: https://getcomposer.org/download/
 .. _`Install Symfony`: https://symfony.com/download
 .. _`install Symfony`: https://symfony.com/download