Create description.md

mods/EnderGoodra@Textile/description.md

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+# Textile
+A Balatro mod that modifies the base game's `evaluate()` function, adding in some extra style options for text.
+
+## Changes:
+`{B:<integer>}` A new text style that creates a box around the selection, much like `{X: }` does for the base game. The color for the box is selected in a similar way to `{V: }`, where the provided integer acts as the index in the `colours` table, returned from `loc_vars`.
+
+Note that this allows a box to contain only space characters if desired, unlike `{X: }` which truncates any whitespace characters present.
+```lua
+text = {
+  'This is a {B:1,C:white}test{} for the {B:2,C:red}B{} style'
+}
+```
+```lua
+loc_vars = function(self, info_queue, card)
+  return {
+    vars = {
+      colours = {
+        G.C.SECONDARY_SET.Tarot, -- at index 1
+        HEX("38000b"), -- at index 2
+      },
+    },
+  }
+end
+```
+
+`{X: }` now supports having its text color assigned using `{V: }`
+```lua
+text = {
+  'This is a {X:1,C:white}test{} for the {X:2,V:1}X{} change'
+}
+```