feat: set up luasnip;

feat: markdown file marker snippet

nvim/lua/plugins/luasnip.lua

@@ -0,0 +1,13 @@
+return {
+   {
+      "L3MON4D3/LuaSnip",
+      config = function(_, opts)
+         -- Load default NvChad + Friendly Snippets
+         -- require("luasnip")(_, opts)
+
+         -- Load custom snippets
+         local custom_snippets_path = vim.fn.stdpath("config") .. "/lua/snippets/"
+         require("luasnip.loaders.from_lua").lazy_load({ paths = custom_snippets_path })
+      end,
+   },
+}