README markdown and Elixir updates

Author: fhunleth

README.md

@@ -1,26 +1,21 @@
-Nerves.Leds
-===========
+# Nerves.Leds
+
 [![Build Status](https://travis-ci.org/nerves-project/nerves_leds.svg?branch=master)](https://travis-ci.org/nerves-project/nerves_leds)
-[![Hex version](https://img.shields.io/hexpm/v/nerves_leds.svg "Hex version")](https://hex.pm/packages/nerves_leds) [![Ebert](https://ebertapp.io/github/nerves-project/nerves_leds.svg)](https://ebertapp.io/github/nerves-project/nerves_leds)
+[![Hex version](https://img.shields.io/hexpm/v/nerves_leds.svg "Hex version")](https://hex.pm/packages/nerves_leds)
 
 Simple API to drive leds exposed by linux `/sys/class/leds`.  Designed for use with [Nerves](http://nerves-project.org/), but works on any distribution of Linux with `/sys/class/leds`.
 
 ## Installation
 
-If [available in Hex](https://hex.pm/docs/publish), the package can be installed as:
-
-  1. Add `nerves_leds` to your list of dependencies in `mix.exs`:
-
-  ```elixir
-  def deps do
-    [{:nerves_leds, "~> 0.8.0"}]
-  end
-  ```
-
-  2. Run `mix deps.get` and `mix compile`
+Add `nerves_leds` to your list of dependencies in `mix.exs`:
 
+```elixir
+def deps do
+  [{:nerves_leds, "~> 0.8.0"}]
+end
+```
 
-### Configuration & Usage
+## Configuration & Usage
 
 Configure your LEDs mappings:
 
@@ -34,27 +29,27 @@ Now, you can use predefined states in your app:
 ```elixir
 alias Nerves.Leds
 
-Leds.set connect: true
-Leds.set connect: :heartbeat
-Leds.set connect: false, error: :slowblink
+Leds.set(connect: true)
+Leds.set(connect: :heartbeat)
+Leds.set(connect: false, error: :slowblink)
 ```
 
 You can also define your own states:
 
 ```elixir
 # config/config.exs
 config :nerves_leds, states: [
-	fastblink: [ trigger: "timer", delay_off: 40, delay_on: 30 ],
-	blip: [ trigger: "timer", delay_off: 1000, delay_on: 100 ]]
+    fastblink: [ trigger: "timer", delay_off: 40, delay_on: 30 ],
+    blip: [ trigger: "timer", delay_off: 1000, delay_on: 100 ]]
 ```
 
 For situations where the number of LEDs are not known at compile time, you
 can enumerate the LEDs:
 
 ```elixir
-Leds.enumerate
+Leds.enumerate()
 ```
 
-### More Details
+## More Details
 
 See the [documentation](https://hexdocs.pm/nerves_leds) for the full description of the API and configuration.