Adds missing comments for BLACKSMITH filters

README.md

@@ -136,10 +136,10 @@ repair all items, except diamond armor.
 All currently supported presets, and available filters for each preset:
 
 - BLACKSMITH (WEAPON_SMITH + ARMOR_SMITH + TOOL_SMITH)
-    - GOLD
-    - IRON
-    - DIAMOND
-    - NETHERITE
+    - GOLD (all gold armor, tools and weapons)
+    - IRON (all iron armor, tools and weapons)
+    - DIAMOND (all diamond armor, tools and weapons)
+    - NETHERITE (all netherite armor, tools and weapons)
 - WEAPON_SMITH: (RANGED + SWORD + SHIELD)
     - BOW (bows and crossbows)
     - SWORD (swords)