feat: markt .svx files as markdown

.config/nvim/init.lua

@@ -9,6 +9,7 @@ vim.o.wrap = false -- Disable line wrapping
 vim.o.cursorline = true -- Highlight the current line
 vim.o.termguicolors = true -- Enable 24-bit RGB colors
 vim.o.clipboard = "unnamedplus"
+vim.filetype.add({extension = {svx = "markdown"}})
 
 -- Syntax highlighting and filetype plugins
 vim.cmd('syntax enable')