Update README.md

Author: WhiteSymmetry

README.md

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 # Keçeci Numbers: Keçeci Sayıları (Keçeci Conjecture)
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-Working version: 0.8.6
 
 [![PyPI version](https://badge.fury.io/py/kececinumbers.svg)](https://badge.fury.io/py/kececinumbers/)
 [![License: AGPL](https://img.shields.io/badge/License-AGPL-yellow.svg)](https://opensource.org/licenses/AGPL)