Tidy up documentation.

lib/ip/address/helpers.ex

@@ -1,7 +1,5 @@
 defmodule IP.Address.Helpers do
-  @moduledoc """
-  Helpful macros related to IP addresses.
-  """
+  @moduledoc false
 
   @doc """
   Guard clause macro for "between 0 and 0xffffffff"

lib/ip/address/ula.ex

@@ -3,15 +3,13 @@ defmodule IP.Address.ULA do
   alias IP.Prefix.EUI64
   use Bitwise
 
-  @moduledoc """
-  Used to generate Unique Local Addresses
-  """
+  @moduledoc false
 
   @doc """
   Generates an IPv6 Unique Local Address
   """
   @spec generate(binary, non_neg_integer, true | false) :: \
-    {:ok, Address.ipv4} | {:error, term}
+    {:ok, Address.ipv6} | {:error, term}
   def generate(mac, subnet_id, locally_assigned)
   when is_binary(mac)
    and is_integer(subnet_id) and subnet_id >= 0 and subnet_id <= 0xffff

lib/ip/prefix/eui64.ex

@@ -1,9 +1,7 @@
 defmodule IP.Prefix.EUI64 do
   use Bitwise
 
-  @moduledoc """
-  Handles functions related to EUI64 addresses.
-  """
+  @moduledoc false
 
   @doc """
   Parse a mac address into an integer.

lib/ip/prefix/parser.ex

@@ -2,9 +2,7 @@ defmodule IP.Prefix.Parser do
   alias IP.{Prefix, Address}
   import IP.Prefix.Helpers
 
-  @moduledoc """
-  Used internally by `IP.Prefix.from_string` to parse IP prefixes.
-  """
+  @moduledoc false
 
   @doc """
   Attempts to parse a `prefix` of unknown IP version.

lib/ip/scope.ex

@@ -47,7 +47,7 @@ defmodule IP.Scope do
   ]
 
   @doc """
-  Return the scope of `address``
+  Return the scope of `address`
 
   ## Examples