Fix README example and docker_run to use --resourcedir correctly. (#276)

Author: bluegate010

README.md

@@ -73,17 +73,17 @@ Suppose you have a directory `my_resource_dir` with the following contents:
 - `reference_style.csl`
 - `template.tex`
 
-`template.tex` and any input files can refer to files in `resource_dir`, for example
-by using `\includegraphics{extra/my_resource_dir/img/cover_page_background.png}`.
+`template.tex` and any input files can refer to files in `my_resource_dir`, for example
+by using `\includegraphics{img/cover_page_background.png}`.
 
 You can then run the following:
 
 ```sh
 ./docker_run \
-  --extra_resource_dir path/to/my_resource_dir \
-  --template extra/my_resource_dir/template.tex \
-  --reference_doc extra/my_resource_dir/reference_doc.docx \
-  --csl extra/my_resource_dir/reference_style.csl \
+  --resourcedir my_resource_dir \
+  --template /my_resource_dir/template.tex" \
+  --reference_doc /my_resource_dir/reference_doc.docx" \
+  --csl /my_resource_dir/reference_style.csl \
   --pdf output.pdf \
   input.tcg
 ```
@@ -98,10 +98,10 @@ To render a document to HTML:
 
 ```sh
 ./docker_run \
-  --extra_resource_dir path/to/my_resource_dir \
-  --template_html extra/my_resource_dir/html.template \
-  --html_stylesheet extra/my_resource_dir/style1.css \
-  --html_stylesheet extra/my_resource_dir/style2.css \
+  --resourcedir my_resource_dir \
+  --template_html /my_resource_dir/html.template \
+  --html_stylesheet /my_resource_dir/style1.css \
+  --html_stylesheet /my_resource_dir/style2.css \
   --html output.html \
   input.tcg
 ```

docker_run

@@ -25,16 +25,16 @@ if test "${1}" == "--help"; then
 	exit 0
 fi
 
-EXTRA_RESOURCE_DIR=""
+RESOURCE_DIR=""
 
 declare -a pass_through_args=()
 
 while [[ $# -gt 0 ]]; do
   arg="$1"
   case "$arg" in
-    --extra_resource_dir)
+    --resourcedir)
       if [[ -n "$2" ]]; then
-        EXTRA_RESOURCE_DIR="$2"
+        RESOURCE_DIR="$2"
         shift 2
       else
         echo "Error: Argument for $1 is missing" >&2
@@ -51,9 +51,9 @@ done
 
 declare -a docker_run_args=("--workdir=/workspace" "--volume=$(pwd):/workspace")
 
-if [[ -n "${EXTRA_RESOURCE_DIR}" && -d "${EXTRA_RESOURCE_DIR}" ]]; then
-  dir=$(basename "${EXTRA_RESOURCE_DIR}")
-  docker_run_args+=("--volume=${EXTRA_RESOURCE_DIR}:/extra_resources/${dir}")
+if [[ -n "${RESOURCE_DIR}" && -d "${RESOURCE_DIR}" ]]; then
+  docker_run_args+=("--volume=$(realpath ${RESOURCE_DIR}):/${RESOURCE_DIR}")
+  docker_container_args+=("--resourcedir=/${RESOURCE_DIR}")
 fi
 
 echo "Launching Container: ${docker_image}"