docs: fixed conform examples

lua/lazyvim/plugins/formatting.lua

@@ -96,7 +96,7 @@ return {
           fish = { "fish_indent" },
           sh = { "shfmt" },
         },
-        -- LazyVim will merge the options you set here with builtin formatters.
+        -- The options you set here will be merged with the builtin formatters.
         -- You can also define any custom formatters here.
         ---@type table<string, conform.FormatterConfigOverride|fun(bufnr: integer): nil|conform.FormatterConfigOverride>
         formatters = {
@@ -110,7 +110,7 @@ return {
           --
           -- # Example of using shfmt with extra args
           -- shfmt = {
-          --   extra_args = { "-i", "2", "-ci" },
+          --   prepend_args = { "-i", "2", "-ci" },
           -- },
         },
       }