Fix typo in string_get_character_breaks() sample code

Author: timothyqiu

doc/classes/TextServer.xml

@@ -1732,7 +1732,7 @@
 				Returns array of the composite character boundaries.
 				[codeblock]
 				var ts = TextServerManager.get_primary_interface()
-				print(ts.string_get_word_breaks("Test ❤️‍🔥 Test")) # Prints [1, 2, 3, 4, 5, 9, 10, 11, 12, 13, 14]
+				print(ts.string_get_character_breaks("Test ❤️‍🔥 Test")) # Prints [1, 2, 3, 4, 5, 9, 10, 11, 12, 13, 14]
 				[/codeblock]
 			</description>
 		</method>