added prototype design pattern

Author: Sean-Bradley

builder/README.md

@@ -1,18 +1,18 @@
 # Builder Design Pattern
 
-The Builder Pattermn is a creation pattern whos intent is to separate the construction of a complex object from its representation so that you can use the same construction process to create different representations.
+The Builder Pattern is a creational pattern whose intent is to separate the construction of a complex object from its representation so that you can use the same construction process to create different representations.
 
 The Builder Pattern tries to solve,
 - How can a class create different representations of a complex object?
 - How can a class that includes creating a complex object be simplified?
 
-The Builder and Factory patterns are very simiar in the fact they both instatiate new objects at run time. The difference is when the process of creating the object is more complex, so rather than the Factory returning a new instance of `ObjectA`, it could call the builders director construct method `ObjectA.construct()`. Both return an Object.
+The Builder and Factory patterns are very simiar in the fact they both instantiate new objects at run time. The difference is when the process of creating the object is more complex, so rather than the Factory returning a new instance of `ObjectA`, it could call the builders director construct method `ObjectA.construct()`. Both return an Object.
 
 Parts of the Builder Pattern
 1. **Product** - The Product being built
 2. **Concrete Builder** - Build the concrete product. Implements the IBuilder interface
-3. **Builder Inteface** - The Interface which the Concrete builder should implement
-4. **Director** - Has a construct method which when called creates a custom type of product
+3. **Builder Interface** - The Interface which the Concrete builder should implement
+4. **Director** - Has a construct method which when called creates a customised product
 
 ![Builder Pattern Overiew](builder.png)