Update README

Author: lowercasebtw

README.md

@@ -1,2 +1,14 @@
 # chit
 A vanilla-like implementation of Optifine's CIT, shaped how I believe it would be/like.
+
+```
+conditional: has_enchantment
+    - fields:
+        - enchantment id (required)
+        - level (not required, will work on any level)
+      
+range_dispatch: enchantment_level
+    - value based on enchantment level
+    - fields:
+        - enchantment id (required)
+```

src/main/kotlin/btw/lowercase/chit/property/conditional/HasEnchantmentConditional.kt

@@ -35,7 +35,7 @@ class HasEnchantmentConditional(val enchantmentId: ResourceLocation, val enchant
         return level != 0 && !(enchantmentLevel != 0 && enchantmentLevel != level)
     }
 
-    override fun type(): MapCodec<out ConditionalItemModelProperty?>? {
+    override fun type(): MapCodec<out ConditionalItemModelProperty?> {
         return CODEC
     }
 }

src/main/kotlin/btw/lowercase/chit/property/numeric/EnchantmentLevelNumeric.kt

@@ -28,7 +28,7 @@ class EnchantmentLevelNumeric(val enchantmentId: ResourceLocation) : RangeSelect
         return EnchantmentUtil.getEnchantmentLevel(clientLevel, stack, enchantmentId).toFloat()
     }
 
-    override fun type(): MapCodec<out RangeSelectItemModelProperty?>? {
+    override fun type(): MapCodec<out RangeSelectItemModelProperty?> {
         return CODEC
     }
 }