[symfony#9803] fix minor typos

Author: xabbuh

setup/_update_dep_errors.rst.inc

@@ -21,9 +21,9 @@ Or, you may have deeper issues where different libraries depend on conflicting
 versions of other libraries. Check your error message to debug.
 
 Another issue that may happen is that the project dependencies can be installed
-in your local computer but not on the remote server. This usually happens when
+on your local computer but not on the remote server. This usually happens when
 the PHP versions are different on each machine. The solution is to add the
-`platform`_ config option in your `composer.json` file to define the highest
-PHP version allowed for the dependencies (set it to server's PHP version).
+`platform`_ config option to your `composer.json` file to define the highest
+PHP version allowed for the dependencies (set it to the server's PHP version).
 
 .. _`platform`: https://getcomposer.org/doc/06-config.md#platform