Update README.md

Author: DanielVandH

README.md

@@ -3,7 +3,7 @@
 [![Stable](https://img.shields.io/badge/docs-stable-blue.svg)](https://JuliaGeometry.github.io/DelaunayTriangulation.jl/stable/)
 [![Dev](https://img.shields.io/badge/docs-dev-blue.svg)](https://JuliaGeometry.github.io/DelaunayTriangulation.jl/dev/)
 [![Coverage](https://codecov.io/gh/JuliaGeometry/DelaunayTriangulation.jl/branch/main/graph/badge.svg)](https://codecov.io/gh/JuliaGeometry/DelaunayTriangulation.jl)
-[![DOI](https://zenodo.org/badge/540660309.svg)](https://zenodo.org/badge/latestdoi/540660309)
+[![DOI](https://joss.theoj.org/papers/10.21105/joss.07174/status.svg)](https://doi.org/10.21105/joss.07174)
 [![Aqua QA](https://raw.githubusercontent.com/JuliaTesting/Aqua.jl/master/badge.svg)](https://github.com/JuliaTesting/Aqua.jl)
 
 This is a package for constructing Delaunay triangulations and Voronoi tessellations of planar point sets. Supports unconstrained and constrained triangulations, weighted triangulations, mesh refinement, triangulation of curve bounded domains, Voronoi tessellations, power diagrams, and clipped and centroidal Voronoi tessellations. To install the package, do
@@ -174,4 +174,4 @@ Compared to all these other libraries, and only in the context of planar triangu
 </div>
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-![Comparison](softwarecomparison.png)
+![Comparison](softwarecomparison.png)