Update README.md

Author: WhiteSymmetry

README.md

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 # Keçeci Numbers: Keçeci Sayıları (Keçeci Conjecture)
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+# Keçeci Numbers <img src="docs/logo.jpg" alt="Keçeci Numbers" align="right" height="140"/>
+
 [![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)
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.15377659.svg)](https://doi.org/10.5281/zenodo.15377659)