change readme badge

Signed-off-by: Nitish Bharambe <[email protected]>

Author: nitbharambe

README.md

@@ -10,9 +10,7 @@ SPDX-License-Identifier: MPL-2.0
 [![Downloads](https://static.pepy.tech/badge/power-grid-model-io)](https://pepy.tech/project/power-grid-model-io)
 [![Downloads](https://static.pepy.tech/badge/power-grid-model-io/month)](https://pepy.tech/project/power-grid-model-io)
 
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@@ -26,7 +24,7 @@ SPDX-License-Identifier: MPL-2.0
 
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+[![Power Grid Model logo](https://github.com/PowerGridModel/.github/blob/main/artwork/svg/color.svg)](#)
 
 # Power Grid Model Input/Output