fix grammar in translated D10 instructions

docs/drupal/index.md

@@ -44,7 +44,7 @@ cv core:install --cms-base-url="https://d10.example.org" --db="mysql://database_
 
 ### Install a translated CiviCRM {:#drupal10-i18n}
 
-To install a translated CiviCRM on Drupal 10 requires the following first downloading the translation files. 
+To install a translated CiviCRM on Drupal 10 requires an additional step to download the translation files.
 
 Change the following in the command below: