Add ordering readme.md and bump version

Author: kindly

README.md

@@ -49,6 +49,7 @@ print(result)
 # {'a': 2, 'b': 3}
 ```
 
+
 Create Patch example
 ```
 
@@ -60,6 +61,20 @@ print(patch)
 # {'a': 2, 'b': 3}
 ```
 
+Merge example preserving order. Inputs need to be OrderedDicts. Will error otherwise.
+Argument "position" can either be 'first', 'last'.
+
+```
+import json_merge_patch
+
+input1 = OrderedDict([("a", 1)])
+input2 = OrderedDict([("a", 1), ("b", 3)])
+
+result = json_merge_patch.merge(input1, input2, position="first")
+print(result)
+# {'b': 3, 'a': 2}
+```
+
 Usage as a command line tool
 ----------------------------
 

setup.py

@@ -1,6 +1,6 @@
 from setuptools import setup
 setup(name='json-merge-patch',
-      version='0.1',
+      version='0.2',
       description='JSON Merge Patch library (https://tools.ietf.org/html/rfc7386)',
       author='David Raznick',
       author_email='mr.raznick@gmail.com',