Mark a bug in En_Tana (#954)

* bug

* Re word the bug to be clearer

* Small edits

* Use Another wording

src/overlays/actors/ovl_En_Tana/z_en_tana.c

@@ -29,7 +29,10 @@ const ActorInit En_Tana_InitVars = {
     NULL,
 };
 
-static char* sShelfTypes[] = {
+//! @bug A third entry is missing here. When printing the string indexed by `params` for type 2, the
+//! next data entry will be dereferenced and print garbage, stopping any future printing.
+//! In a non-matching context, this can cause a crash if the next item isn't a valid pointer.
+static const char* sShelfTypes[] = {
     "木の棚", // "Wooden Shelves"
     "石の棚", // "Stone Shelves"
 };