Center images; update Documenter

README.md

@@ -255,7 +255,7 @@ or [create an issue](https://github.com/trixi-framework/Trixi.jl/issues/new).
 
 
 ## Acknowledgments
-<p float="center">
+<p align="center">
   <!-- BMBF -->
   <img align="middle" src="https://user-images.githubusercontent.com/3637659/231436391-b28a76a4-f027-40f9-bd28-14e3a2f3e16a.png" height="140"/>
 

docs/src/index.md

@@ -346,6 +346,10 @@ This project has benefited from funding by the Deutsche Forschungsgemeinschaft (
 under Germany's Excellence Strategy EXC 2044-390685587, Mathematics Münster:
 Dynamics-Geometry-Structure.
 
+This project has benefited from funding by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)
+through the research unit FOR 5409 "Structure-Preserving Numerical Methods for Bulk- and
+Interface Coupling of Heterogeneous Models (SNuBIC)" (project number 463312734).
+
 This project has benefited from funding from the European Research Council through the
 ERC Starting Grant "An Exascale aware and Un-crashable Space-Time-Adaptive
 Discontinuous Spectral Element Solver for Non-Linear Conservation Laws" (Extreme),
@@ -356,3 +360,8 @@ agreement 2020-03642 VR.
 
 This project has benefited from funding from the United States National Science Foundation under awards
 DMS-1719818 and DMS-1943186.
+
+This project has benefited from funding from the German Federal Ministry of
+Education and Research through the project grant "Adaptive earth system modeling
+with significantly reduced computation time for exascale supercomputers
+(ADAPTEX)" (funding id: 16ME0668K).