Changed the format of the example code

Author: Bernardo-MG

README.rst

@@ -84,18 +84,18 @@ framework.
 
 To use it just import the parser:
 
-    >>> from dice_notation.parser import DiceParser
+    from dice_notation.parser import DiceParser
 
 And then use it to parse a dice notation expression:
 
-    >>> parser = DiceParser()
-    >>> dice = parser.parse('1d6+2')
+    parser = DiceParser()
+    dice = parser.parse('1d6+2')
 
 The result can be accessed just by calling the 'roll' method as many times as
 needed, which will generate a new random value each time it is called.
 
-    >>> print(dice.roll())
-    >>> print(dice.roll())
+    print(dice.roll())
+    print(dice.roll())
 
 Collaborate
 -----------

docs/source/usage.rst

@@ -4,15 +4,15 @@ Usage
 
 To use the parser just import it:
 
-    >>> from dice_notation.parser import DiceParser
+    from dice_notation.parser import DiceParser
 
 And then parse a dice notation expression:
 
-    >>> parser = DiceParser()
-    >>> dice = parser.parse('1d6+2')
+    parser = DiceParser()
+    dice = parser.parse('1d6+2')
 
 The result can be accessed just by calling the 'roll' method as many times as
 needed, which will generate a new random value each time it is called.
 
-    >>> print(dice.roll())
-    >>> print(dice.roll())
+    print(dice.roll())
+    print(dice.roll())