Fix typo on editor interface page (#86)

Author: eth0net

docs/concepts/editor.md

@@ -7,7 +7,7 @@ Pandora comes with an inbuilt editor directly inside Godot Engine:
 1. **Control Bar**: Create or delete entities, save the game or reset the addon to the latest save.
 2. **Entity Tree**: View and Select entities and categories.
 3. **Property Bar**: Create a new property on the currently selected category.
-4. **Property List**: All created properties for the currently selected category or entity. Property names can be changed only on its original category - click on the reference link to navigate to it. Values can be changed on all entities and categories. They values will be propagated down automatically. [Learn more about property inheritance here](/concepts/entities).
+4. **Property List**: All created properties for the currently selected category or entity. Property names can be changed only on its original category - click on the reference link to navigate to it. Values can be changed on all entities and categories. Their values will be propagated down automatically. [Learn more about property inheritance here](/concepts/entities).
 5. **Entity Configuration**: each entity comes with a default configuration such as its icon and the script it is instantiated with. Those can be changed on a per entity basis.
 6. **Property Configuration**: selecting the name of a property will open up its configuration. Many properties support a set of configurations that can be adjusted to the user's needs. [Learn more about property attributes](/concepts/properties/)
-7. **Information Bar**: learn more about how to contribute to this addon, as well as some useful links. This also contains the current addon version - ensure to include this version in any bug report!
+7. **Information Bar**: learn more about how to contribute to this addon, as well as some useful links. This also contains the current addon version - ensure to include this version in any bug report!