Added Zenodo DOI for step-75.

diff --git a/examples/step-75/doc/intro.dox b/examples/step-75/doc/intro.dox
index b45d906520f47c85f994808fb0b046df43b262fc..7cf9a46d5c4ef60b758a6a979f199fff19f4a911 100644 (file)
--- a/examples/step-75/doc/intro.dox
+++ b/examples/step-75/doc/intro.dox
@@ -13,6 +13,7 @@ Peter Munch would like to thank Timo Heister, Martin Kronbichler, and
 Laura Prieto Saavedra for many very interesting discussions.
 </i>
 
+@dealiiTutorialDOI{10.5281/zenodo.6423570,https://zenodo.org/badge/DOI/10.5281/zenodo.6423570.svg}
 
 @note As a prerequisite of this program, you need to have the p4est
 library and the Trilinos library installed. The installation of deal.II