update doi in index.Rmd

Author: github-actions[bot]

source/sop/sop_040_nl_imagej_ongewervelden/index.Rmd

@@ -40,6 +40,7 @@ site: bookdown::bookdown_site
 bibliography: referenties.yaml
 link-citations: TRUE
 csl: https://raw.githubusercontent.com/citation-style-language/styles/master/research-institute-for-nature-and-forest.csl
+doi: 10.5281/zenodo.17788713
 ---
 
 ```{=html}