Update themes.md

docs/rayfield/configuration/themes.md

@@ -9,7 +9,7 @@ description: Themes enabled in Rayfield and their Theme Identifiers
 All themes are beautifully designed to both display Rayfield in its' best form and allow more personality within each script, while retaining an easy experience for the developer
 
 ## Using Themes
-To make use of Themes, either run Window.ModifyTheme('ThemeIdentifier'), or add an argument to the CreateWindow function named Theme and set the value (string) to whichever Theme Identifier you'd like to use.
+To make use of Themes, either run ```lua Window.ModifyTheme('ThemeIdentifier')```, or add an argument to the CreateWindow function named Theme and set the value (string) to whichever Theme Identifier you'd like to use.
 
 ## Themes Available