chore: Update README.md

Author: tanvirtin

README.md

@@ -39,3 +39,7 @@ In Lua:
 require('monokai')
 vim.cmd('colorscheme monokai')
 ```
+
+## Extras
+
+Extra color configs for **Kitty**, **Alacritty**, **Windows Terminal**, can be found in [extras](extras/). To use them, refer to their respective documentation.

lua/monokai.lua

@@ -24,7 +24,7 @@ M.classic = {
     purple = '#ae81ff',
     red = '#e95678',
     diff_add = '#3d5213',
-    diff_remove = '#690c2b',
+    diff_remove = '#4a0f23',
     diff_change = '#27406b',
     diff_text = '#23324d',
 }
@@ -51,7 +51,7 @@ M.pro = {
     purple = '#AB9DF2',
     red = '#FD6883',
     diff_add = '#3d5213',
-    diff_remove = '#690c2b',
+    diff_remove = '#4a0f23',
     diff_change = '#27406b',
     diff_text = '#23324d',
 }
@@ -78,7 +78,7 @@ M.soda = {
     purple = '#9c64fe',
     red = '#f3005f',
     diff_add = '#3d5213',
-    diff_remove = '#690c2b',
+    diff_remove = '#4a0f23',
     diff_change = '#27406b',
     diff_text = '#23324d',
 }