New tutorial for r.hydro.flatten (#69)

Author: petrasovaa

.github/workflows/pr-check.yml

@@ -32,6 +32,7 @@ jobs:
         with:
           packages:
             any::rmarkdown
+            any::reticulate
 
       - name: Set up Quarto
         uses: quarto-dev/quarto-actions/setup@v2

.github/workflows/publish.yml

@@ -31,6 +31,7 @@ jobs:
         with:
           packages:
             any::rmarkdown
+            any::reticulate
 
       - name: Set up Quarto
         uses: quarto-dev/quarto-actions/setup@v2