Update README

Author: harlev

README.md

@@ -1,2 +1,39 @@
 # jsonbox-python
 Python wrapper for https://jsonbox.io
+
+## Installation
+    pip install jsonbox
+    
+## Usage
+```python
+import uuid
+from jsonbox import JsonBox
+
+# generate unique box id
+MY_BOX_ID = str(uuid.uuid4()).replace("-", "_")
+
+# create instance
+jb = JsonBox()
+
+data = {"name": "David"}
+
+# write data
+result = jb.write(data, MY_BOX_ID)
+
+# get record id of written data
+record_id = jb.get_record_id(result)
+
+# read data
+print(jb.read(MY_BOX_ID, record_id))
+
+# update data
+data = {"name": "Bob"}
+jb.update(data, MY_BOX_ID, record_id)
+
+# read data
+print(jb.read(MY_BOX_ID, record_id))
+```
+
+
+## License
+MIT