Update Dockerfile

Added install2.r is used to install R packages, ensuring dependencies like rmarkdown and knitr are available for rendering reports.
Pandoc and its citation processor (pandoc-citeproc) are installed via apt-get, which is appropriate for system utilities.

Dockerfile

@@ -1,16 +1,32 @@
+# Start with the base R image
 FROM rocker/r-base:latest
 
+# Set working directory
 WORKDIR /code
 
+# Install system dependencies, including Pandoc and TinyTeX
+RUN apt-get update && apt-get install -y \
+    pandoc \
+    pandoc-citeproc \
+    wget \
+    && apt-get clean
+
+# Install TinyTeX for LaTeX support
+RUN R -e "install.packages('tinytex'); tinytex::install_tinytex()"
+
+# Install required R packages
 RUN install2.r --error \
     shiny \
     dplyr \
     ggplot2 \
     readr \
     ggExtra \
-    pandoc \
-    pandoc-citeproc 
-    
+    rmarkdown \
+    knitr
+
+# Copy application code
 COPY . .
 
-CMD ["R", "--quiet", "-e", "shiny::runApp(host='0.0.0.0', port=7860)"]
+# Set the command to run the Shiny app
+CMD ["R", "--quiet", "-e", "shiny::runApp('.', host='0.0.0.0', port=7860)"]
+