add info to readme

nkezhaya · Nov 23, 2022 · aaf7369 · aaf7369
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diff --git a/README.md b/README.md
@@ -117,6 +117,9 @@ IO.puts(rate.price)
 File.write!("#{label.tracking_number}.#{label.format}", Base.decode64!(label.image))
 ```
 
+## Creating your own shipping modules
+there are 2 ways of setting up your own shipping module either specifing it in the config if its in its own namespace or
+creating a module in your project with following module naming conventions defmodule Shippex.Carrier.Modulename, and setting up the config carriers key to match the modules config() return. see the ups module for syntax examples
 ## TODO:
 
 Carrier support:

diff --git a/lib/shippex/config.ex b/lib/shippex/config.ex
@@ -6,7 +6,7 @@ defmodule Shippex.Config do
   @spec carriers() :: [Carrier.t()]
   def carriers() do
     config()
-    |> Enum.map_with_index(fn _config, i -> i end)
+    |> Enum.with_index(fn _config, i -> i end)
   end
 
   @spec config() :: Keyword.t() | none()