[misc] Add logo to the header

Author: dmitry-kabanov

README.md

@@ -1,7 +1,10 @@
+<h1 align="center">
+<img src="assets/mardi-oif-logo.svg" width="40" style="vertical-align: text-bottom;" />
+MaRDI Open Interfaces
+</h1>
 
 [![QA](https://github.com/MaRDI4NFDI/open-interfaces/actions/workflows/qa.yaml/badge.svg)](https://github.com/MaRDI4NFDI/open-interfaces/actions/workflows/qa.yaml)
 [![DOI](https://zenodo.org/badge/DOI/10.5281/zenodo.13753667.svg)](https://doi.org/10.5281/zenodo.13753667)
-# MaRDI Open Interfaces
 
 _MaRDI Open Interfaces_ is a project aiming to improve interoperability
 in scientific computing by removing two hurdles that computational scientists