Update README.md

Author: princemaple

README.md

@@ -31,93 +31,110 @@ end
 
 #### Protocols
 
-    iex> inspect Qex.new
-    "#Qex<[]>"
+```elixir
+iex> inspect Qex.new
+"#Qex<[]>"
 
-    iex> Enum.count Qex.new(1..5)
-    5
+iex> Enum.count Qex.new(1..5)
+5
 
-    iex> Enum.empty? Qex.new
-    true
+iex> Enum.empty? Qex.new
+true
 
-    iex> Enum.map Qex.new([1, 2, 3]), &(&1 + 1)
-    [2, 3, 4]
+iex> Enum.map Qex.new([1, 2, 3]), &(&1 + 1)
+[2, 3, 4]
 
-    iex> inspect Enum.into(1..5, %Qex{})
-    "#Qex<[1, 2, 3, 4, 5]>"
+iex> inspect Enum.into(1..5, %Qex{})
+"#Qex<[1, 2, 3, 4, 5]>"
+```
 
 #### Create a new queue from a range
 
-    iex> inspect Qex.new(1..3)
-    "#Qex<[1, 2, 3]>"
+```elixir
+iex> inspect Qex.new(1..3)
+"#Qex<[1, 2, 3]>"
+```
 
 #### Create a new queue from a list
 
-    iex> inspect Qex.new([1, 2, 3])
-    "#Qex<[1, 2, 3]>"
+```elixir
+iex> inspect Qex.new([1, 2, 3])
+"#Qex<[1, 2, 3]>"
+```
 
 #### Add an element to the back of the queue
 
-    iex> q = Qex.new([:mid])
-    iex> Enum.to_list Qex.push(q, :back)
-    [:mid, :back]
+```elixir
+iex> q = Qex.new([:mid])
+iex> Enum.to_list Qex.push(q, :back)
+[:mid, :back]
+```
 
 #### Add an element to the front of the queue
 
-    iex> q = Qex.new([:mid])
-    iex> Enum.to_list Qex.push_front(q, :front)
-    [:front, :mid]
+```elixir
+iex> q = Qex.new([:mid])
+iex> Enum.to_list Qex.push_front(q, :front)
+[:front, :mid]
+```
 
 #### Get and remove an element from the front of the queue
 
-    iex> q = Qex.new([:front, :mid])
-    iex> {{:value, item}, _q} = Qex.pop(q)
-    iex> item
-    :front
-
-    iex> q = Qex.new
-    iex> {empty, _q} = Qex.pop(q)
-    iex> empty
-    :empty
+```elixir
+iex> q = Qex.new([:front, :mid])
+iex> {{:value, item}, _q} = Qex.pop(q)
+iex> item
+:front
+
+iex> q = Qex.new
+iex> {empty, _q} = Qex.pop(q)
+iex> empty
+:empty
+```
 
 #### Get and remove an element from the back of the queue
 
-    iex> q = Qex.new([:mid, :back])
-    iex> {{:value, item}, _q} = Qex.pop_back(q)
-    iex> item
-    :back
-
-    iex> q = Qex.new
-    iex> {empty, _q} = Qex.pop_back(q)
-    iex> empty
-    :empty
+```elixir
+iex> q = Qex.new([:mid, :back])
+iex> {{:value, item}, _q} = Qex.pop_back(q)
+iex> item
+:back
+
+iex> q = Qex.new
+iex> {empty, _q} = Qex.pop_back(q)
+iex> empty
+:empty
+```
 
 #### Reverse a queue
 
-    iex> q = Qex.new(1..3)
-    iex> Enum.to_list q
-    [1, 2, 3]
-    iex> Enum.to_list Qex.reverse(q)
-    [3, 2, 1]
+```elixir
+iex> q = Qex.new(1..3)
+iex> Enum.to_list q
+[1, 2, 3]
+iex> Enum.to_list Qex.reverse(q)
+[3, 2, 1]
+```
 
 #### Split a queue into two, the front n items are put in the first queue
 
-    iex> q = Qex.new 1..5
-    iex> {q1, q2} = Qex.split(q, 3)
-    iex> Enum.to_list q1
-    [1, 2, 3]
-    iex> Enum.to_list q2
-    [4, 5]
-
+```elixir
+iex> q = Qex.new 1..5
+iex> {q1, q2} = Qex.split(q, 3)
+iex> Enum.to_list q1
+[1, 2, 3]
+iex> Enum.to_list q2
+[4, 5]
+```
 
 #### Join two queues together
 
-    iex> q1 = Qex.new 1..3
-    iex> q2 = Qex.new 4..5
-    iex> Enum.to_list Qex.join(q1, q2)
-    [1, 2, 3, 4, 5]
-
-
+```elixir
+iex> q1 = Qex.new 1..3
+iex> q2 = Qex.new 4..5
+iex> Enum.to_list Qex.join(q1, q2)
+[1, 2, 3, 4, 5]
+```
 
 ## Why not "Queue"?