Add a reminder to load the CSV as a source in Localization using spreadsheets

tutorials/i18n/internationalizing_games.rst

@@ -22,6 +22,8 @@ page.
 .. note:: We will be using the official demo as an example; you can
           `download it from the Asset Library <https://godotengine.org/asset-library/asset/2776>`_.
 
+.. _doc_internationalizing_games_configuring_imported_translation:
+
 Configuring the imported translation
 ------------------------------------
 

tutorials/i18n/localization_using_spreadsheets.rst

@@ -144,3 +144,11 @@ select the delimiter to use when parsing the CSV file.
 .. image:: img/import_csv.webp
 
 Be sure to click **Reimport** after any change to these options.
+
+Loading the CSV file as a translation
+-------------------------------------
+
+Once a CSV file is imported, it is **not** automatically registered as a translation
+source for the project. Remember to follow the steps described in
+:ref:`doc_internationalizing_games_configuring_imported_translation` so that the
+translation is actually used when running the project.