all index.md files renamed to README.md for more compatibility with github

property/README.md

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+---
+layout: pattern
+title: Property
+folder: property
+permalink: /patterns/property/
+categories: Creational
+tags:
+ - Java
+ - Difficulty-Beginner
+---
+
+## Intent
+Create hierarchy of objects and new objects using already existing
+objects as parents.
+
+![alt text](./etc/property.png "Property")
+
+## Applicability
+Use the Property pattern when
+
+* when you like to have objects with dynamic set of fields and prototype inheritance
+
+## Real world examples
+
+* [JavaScript](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Inheritance_and_the_prototype_chain) prototype inheritance