Configuring/Variables: added locale variable (#1292)

Author: Brumus14

content/Configuring/Variables.md

@@ -63,6 +63,7 @@ the layout pages and not here. (See the Sidebar for Dwindle and Master layouts)
 | allow_tearing | master switch for allowing tearing to occur. See [the Tearing page](../Tearing). | bool | false |
 | resize_corner | force floating windows to use a specific corner when being resized (1-4 going clockwise from top left, 0 to disable) | int | 0 |
 | modal_parent_blocking | whether parent windows of modals will be interactive | bool | true |
+| locale | overrides the system locale (e.g. en_US, es) | str | \[\[Empty\]\] |
 
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