From 25c7d93e311040d50f16807533da6232066d1ae0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Nicol=C3=A1s=20Quesada?=
 <991946+nquesada@users.noreply.github.com>
Date: Wed, 5 Aug 2026 13:59:06 -0400
Subject: [PATCH] Update README.md

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 [![Paper](https://img.shields.io/badge/Paper-Read%20Article-blue)](https://doi.org/10.1364/JOSAB.577579)
 
+[![codecov](https://codecov.io/gh/polyquantique/phaseshift/graph/badge.svg?token=X2CJ5NYDVW)](https://codecov.io/gh/polyquantique/phaseshift)
+
 # PhaseShift
 
 Decomposition and approximation tools for linear optical unitaries.