ci: debug path issue for rmarkdown rendering

Refs #23

Dockerfile

@@ -11,6 +11,7 @@ RUN mkdir /build_zone
 ADD . /build_zone
 WORKDIR /build_zone
 RUN R -e 'remotes::install_local(upgrade="never")'
-RUN R -e 'rmarkdown::render(file.path(irmara:::app_sys("app/www/documentation/documentation.Rmd")))'
+RUN R -e 'cat(irmara:::app_sys("app/www/documentation/documentation.Rmd")); list.files(irmara:::app_sys("app/www/documentation"))'
+RUN R -e 'rmarkdown::render(irmara:::app_sys("app/www/documentation/documentation.Rmd"))'
 EXPOSE 80
 CMD R -e "options('shiny.port'=80,shiny.host='0.0.0.0');irmara::run_app()"