Update README.md

fancaiyu · web-flow · commit 7acff0c019e7 · 2024-10-15T17:58:14.000+08:00
diff --git a/README.md b/README.md
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 # MCintegration
+[![codecov](https://codecov.io/gh/numericalEFT/MCintegration.py/graph/badge.svg?token=851N2CNOTN)](https://codecov.io/gh/numericalEFT/MCintegration.py)

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	`2`	`+[![codecov](https://codecov.io/gh/numericalEFT/MCintegration.py/graph/badge.svg?token=851N2CNOTN)](https://codecov.io/gh/numericalEFT/MCintegration.py)`