add pandas-pyarrow (#210)

README.md

@@ -205,6 +205,7 @@ ic research to an artifact that engineers can deploy easily. ![GitHub last commi
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 * [OPAL](https://github.com/permitio/opal) - OPAL is an administration layer for Open Policy Agent (OPA), detecting changes to both policy and policy data  in realtime and pushing live updates to your agents. ![GitHub last commit](https://img.shields.io/github/last-commit/permitio/opal?style=flat-square) ![GitHub top language](https://img.shields.io/github/languages/top/permitio/opal?style=flat-square)
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+* [pandas-pyarrow](https://github.com/DanielAvdar/pandas-pyarrow) - Seamlessly switch Pandas DataFrame backend to PyArrow. ![GitHub last commit](https://img.shields.io/github/last-commit/DanielAvdar/pandas-pyarrow?style=flat-square) ![GitHub top language](https://img.shields.io/github/languages/top/DanielAvdar/pandas-pyarrow?style=flat-square) [![version](https://img.shields.io/pypi/v/pandas-pyarrow)](https://img.shields.io/pypi/v/pandas-pyarrow)[![codecov](https://codecov.io/gh/DanielAvdar/pandas-pyarrow/graph/badge.svg?token=N0V9KANTG2)](https://codecov.io/gh/DanielAvdar/pandas-pyarrow)
 * [pdpipe](https://github.com/pdpipe/pdpipe) - Easy pipelines for pandas DataFrames. ![GitHub last commit](https://img.shields.io/github/last-commit/pdpipe/pdpipe?style=flat-square) ![GitHub top language](https://img.shields.io/github/languages/top/pdpipe/pdpipe?style=flat-square)
 ![GitHub stars](https://img.shields.io/github/stars/pdpipe/pdpipe?style=flat-square)
 * [PyDigger](https://github.com/szabgab/pydigger.com) - Collecting and analyzing data about Python projects on PyPI ![GitHub last commit](https://img.shields.io/github/last-commit/szabgab/pydigger.com?style=flat-square) ![GitHub top language](https://img.shields.io/github/languages/top/szabgab/pydigger.com?style=flat-square)