Fix references

Author: javiereguiluz

page_creation.rst

@@ -367,5 +367,5 @@ Go Deeper with HTTP & Framework Fundamentals
 
 .. _`Twig`: https://twig.symfony.com
 .. _`Composer`: https://getcomposer.org
-.. _`Stellar Development with Symfony`: https://symfonycasts.com/screencast/symfony/setup
+.. _`Harmonious Development with Symfony`: https://symfonycasts.com/screencast/symfony/setup
 .. _`Flex recipes`: https://github.com/symfony/recipes/blob/flex/main/RECIPES.md

setup.rst

@@ -317,7 +317,7 @@ Learn More
     setup/web_server_configuration
     setup/*
 
-.. _`Stellar Development with Symfony`: https://symfonycasts.com/screencast/symfony
+.. _`Harmonious Development with Symfony`: https://symfonycasts.com/screencast/symfony
 .. _`Install Composer`: https://getcomposer.org/download/
 .. _`install Symfony CLI`: https://symfony.com/download
 .. _`symfony-cli/symfony-cli GitHub repository`: https://github.com/symfony-cli/symfony-cli