minor #16279 Correct spelling & grammar in 4.4 quick_tour/ (gnito-org)

This PR was merged into the 4.4 branch.

Discussion
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Correct spelling & grammar in 4.4 quick_tour/

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Commits
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7e8e515 Correct spelling & grammar in 4.4 quick_tour/

Author: javiereguiluz

quick_tour/flex_recipes.rst

@@ -29,7 +29,7 @@ are included in your ``composer.json`` file:
         "symfony/yaml": "^4.1"
     }
 
-This makes Symfony different than any other PHP framework! Instead of starting with
+This makes Symfony different from any other PHP framework! Instead of starting with
 a *bulky* app with *every* possible feature you might ever need, a Symfony app is
 small, simple and *fast*. And you're in total control of what you add.
 
@@ -253,7 +253,7 @@ Not convinced yet? No problem: remove the library:
 
     $ composer remove api
 
-Flex will *uninstall* the recipes: removing files and un-doing changes to put your
+Flex will *uninstall* the recipes: removing files and undoing changes to put your
 app back in its original state. Experiment without worry.
 
 More Features, Architecture and Speed

quick_tour/the_architecture.rst

@@ -290,8 +290,7 @@ Environment Variables
 ---------------------
 
 Every app contains configuration that's different on each server - like database
-connection information or passwords. How should these be stored? In files? Or some
-other way?
+connection information or passwords. How should these be stored? In files? Or another way?
 
 Symfony follows the industry best practice by storing server-based configuration
 as *environment* variables. This means that Symfony works *perfectly* with