Update README.md

Author: dwest77a

README.md

@@ -1,5 +1,7 @@
 # Array Partition
 
+[![PyPI version](https://badge.fury.io/py/ArrayPartition.svg)](https://pypi.python.org/pypi/ArrayPartition/)
+
 Required submodule for other libraries:
  - CFAPyX
  - XarrayActive
@@ -8,4 +10,4 @@ Not typically used on its own so there are no usage instructions.
 
 ## Documentation
 
-See the [Documentation](https://html-preview.github.io/?url=https://github.com/dwest77a/ArrayPartition/blob/main/docs/build/html/index.html) for developers.
+See the [Documentation](https://html-preview.github.io/?url=https://github.com/dwest77a/ArrayPartition/blob/main/docs/build/html/index.html) for developers.