Update story_text.md

docs/cutscenes/story_text.md

@@ -18,6 +18,36 @@ Also, by using -debugshowevents as launch options.@You can study more things in
 
 The numbers before each cutscene represents the cutscene ID. Each event in the game triggers a different cutscene ID.
 
-The `@` symbol denotes line break within the dialog box.
-
 Each new line creates a new dialog box in the cutscene.
+
+### Special Characters
+
+|Character | Icon |
+|--|--|
+| `@` | Line break (within the same dialog box) |
+
+#### Button Icons
+|Character | Icon |
+|--|--|
+| `*0` | Right Arrow |
+| `*1` | Down Arrow |
+| `*2` | Left Arrow |
+| `*3` | Up Arrow |
+| `*4` | Jump |
+| `*5` | Boost Attack |
+| `*6` | Magic Attack |
+| `*7` | Hammer Attack |
+| `*8` | Change Magic Type - Left |
+| `*9` | Change Magic Type - Right |
+| `*;` | Item/Magic Menu |
+| `*:` | Pause/Status Screen |
+
+**Note:** The icons show up to the left of where the character is placed, as shown in the image below:
+
+Text:
+```
+1:*1 2:*2 3:*3 4:*4 5:*5 6:*6 7:*7 8:*8 9:*9@::*: ;:*; <:*< =:*= >:*> ?:*? At:*@
+```
+![item_icons](https://user-images.githubusercontent.com/27341392/34705385-10b621d0-f53b-11e7-962f-abcbfe4c5491.png)
+
+(the image can be a little misleading. e.g. the Right arrow appears to the left of the 0:, instead of after it)