add rmarkdown dependency for quarto

.github/workflows/build_book.yaml

@@ -10,7 +10,34 @@ jobs:
     steps:
       - name: Check out repository
         uses: actions/checkout@v3
-
+
+      - name: Setup R
+        uses: r-lib/actions/setup-r@v2
+
+      - name: Setup pandoc
+        uses: r-lib/actions/setup-pandoc@v2
+
+      - name: Get R version
+        id: get-r-version
+        run: echo "version=$(Rscript -e 'cat(as.character(getRversion()))')" >> $GITHUB_OUTPUT
+        shell: bash  
+
+      - name: Cache R packages
+        uses: actions/cache@v3
+        with:
+          path: ${{ env.R_LIBS_USER }}
+          key: ${{ runner.os }}-${{ steps.get-r-version.outputs.version }}-3-
+
+      - name: Install pak
+        run: |
+          install.packages("pak", repos = "https://r-lib.github.io/p/pak/dev/")
+        shell: Rscript {0}
+
+      - name: Install dependencies
+        run: |
+          pak::local_install_dev_deps()
+        shell: Rscript {0}
+
       - name: Set up Quarto
         uses: quarto-dev/quarto-actions/setup@v2
         with:

DESCRIPTION

@@ -33,6 +33,7 @@ Suggests:
   knitr (== 1.42),
   png,
   sessioninfo,
+  rmarkdown,
   xml2,
   devtools
 License: CC BY-NC-SA 4.0