diff --git a/.github/workflows/build-container.yaml b/.github/workflows/build-container.yaml
index eab5267..353f994 100644
--- a/.github/workflows/build-container.yaml
+++ b/.github/workflows/build-container.yaml
@@ -1,6 +1,5 @@
 name: Create and publish a Docker image
 
-# Configures this workflow to run every time a change is pushed to the branch called `release`.
 on:
   push:
   workflow_dispatch:
diff --git a/Dockerfile b/Dockerfile
index 01d662e..c2404fd 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,4 +18,5 @@ jq \
 RUN curl -ssL -o - https://github.com/mikefarah/yq/releases/download/${YQ_VERSION}/yq_linux_amd64.tar.gz |\
   tar xz && mv yq_linux_amd64 /usr/bin/yq
 
-COPY scripts/create-predevals-data.R /bin
+COPY scripts/create-predevals-data.R /usr/local/bin
+RUN chmod u+x /usr/local/bin/create-predevals-data.R
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..dc21a33
--- /dev/null
+++ b/README.md
@@ -0,0 +1,79 @@
+# Docker container for hubPredEvalsData generation
+
+This docker container is a wrapper around
+`hubPredEvalsData::generate_evals_data()` and hosts the in-development code
+from
+[hubverse-org/hubPredEvalsData](https://github.com/hubverse-org/hubPredEvalsData),
+which is used to generate tables of evaluation data from a hub's [oracle
+output](https://hubverse.io/en/latest/user-guide/target-data.html#oracle-output).
+
+The image is built and deployed to the GitHub Container Registry (https://ghcr.io).
+You can find the [latest version of the
+image](https://github.com/hubverse-org/hubPredEvalsData-docker/pkgs/container/hubpredevalsdata-docker/340871974?tag=main)
+by using the `main` tag:
+
+From the command line:
+
+```sh
+docker pull ghcr.io/hubverse-org/hubpredevalsdata-docker:main
+```
+
+## Usage
+
+The main usage for this image is a step in [the hub dashboard control
+room](https://github.com/hubverse-org/hub-dashboard-control-room) that builds
+evals data if it exists.
+
+The container packages the `create-predevals-data.R` script, which will display
+help documentation if you pass `--help` to it.
+
+```sh
+docker run --rm -it \
+ghcr.io/hubverse-org/hubpredevalsdata-docker:main \
+create-predevals-data.R --help
+```
+
+````
+Calculate eval scores data and a predevals-config.json file
+
+USAGE
+
+   create-predevals-data.R [--help] -h </path/to/hub> -c <cfg> -d <oracle> [-o <dir>]
+
+ARGUMENTS
+
+  --help             print help and exit
+  -h </path/to/hub>  path to a local copy of the hub
+  -c <cfg>           path or URL of predevals config file
+  -d <oracle>        path or URL to oracle output data
+  -o <dir>           output directory
+
+EXAMPLE
+
+```bash
+prefix="https://raw.githubusercontent.com/elray1/flusight-dashboard/refs/heads"
+cfg="${prefix}/main/predevals-config.yml"
+oracle="${prefix}/oracle-data/oracle-output.csv"
+
+tmp=$(mktemp -d)
+git clone https://github.com/cdcepi/FluSight-forecast-hub.git $tmp
+
+create-predevals-data.R -h $tmp -c $cfg -d $oracle
+```
+````
+
+## Updating
+
+Because hubPredEvalsData is constantly improving, this image needs to be
+rebuilt with the updated version. This can be achieved by running the update
+script:
+
+```
+./scripts/update.R
+```
+
+When the update is complete, if there are updates, then the lockfile will change
+and you will need to commit it. Once you commit and push, the docker image will
+be rebuilt.
+
+
diff --git a/scripts/create-predevals-data.R b/scripts/create-predevals-data.R
index 8a6d655..202062f 100755
--- a/scripts/create-predevals-data.R
+++ b/scripts/create-predevals-data.R
@@ -5,38 +5,36 @@
 #
 # USAGE
 #
-#    validate.R [--help] -h [/path/to/hub] -c [cfg] -d [oracle] -o [dir]
+#    create-predevals-data.R [--help] -h </path/to/hub> -c <cfg> -d <oracle> [-o <dir>]
 #
 # ARGUMENTS
 # 
 #   --help             print help and exit
-#   -h [/path/to/hub]  path to a local copy of the hub
-#   -c [cfg]           path or URL of predevals config file
-#   -d [oracle]        path or URL to oracle output data
-#   -o [dir]           output directory
+#   -h </path/to/hub>  path to a local copy of the hub
+#   -c <cfg>           path or URL of predevals config file
+#   -d <oracle>        path or URL to oracle output data
+#   -o <dir>           output directory
 # 
 # EXAMPLE
 #
-#   ```
-#   prefix="https://raw.githubusercontent.com/elray1/flusight-dashboard/refs/heads"
-#   cfg="${prefix}/main/predevals-config.yml"
-#   oracle="${prefix}/oracle-data/oracle-output.csv"
+# ```
+# prefix="https://raw.githubusercontent.com/elray1/flusight-dashboard/refs/heads"
+# cfg="${prefix}/main/predevals-config.yml"
+# oracle="${prefix}/oracle-data/oracle-output.csv"
 #
-#   tmp=$(mktemp -d)
-#   git clone https://github.com/cdcepi/FluSight-forecast-hub.git $tmp
+# tmp=$(mktemp -d)
+# git clone https://github.com/cdcepi/FluSight-forecast-hub.git $tmp
 #
-#   create-predevals-data.R -h $tmp -c $cfg -d $oracle
-#   ```
+# create-predevals-data.R -h $tmp -c $cfg -d $oracle
+# ```
 # DOC
 
-args <- commandArgs(trailingOnly = TRUE)
-print_help <- function() {
-  if (file.exists("/bin/create-predevals-data.R")) {
-    script <- readLines("/bin/create-predevals-data.R")
-    bookends <- which(script == "# DOC")
-    writeLines(sub("# ?", "", script[(bookends[1] + 1):(bookends[2] - 1)], perl = TRUE))
-    quit(save = "no", status = 0)
-  }
+args <- commandArgs()
+print_help <- function(script) {
+  lines <- readLines(script)
+  bookends <- which(lines == "# DOC")
+  writeLines(sub("# ?", "", lines[(bookends[1] + 1):(bookends[2] - 1)], perl = TRUE))
+  quit(save = "no", status = 0)
 }
 
 ci_cat <- function(...) {
@@ -48,7 +46,8 @@ ci_cat <- function(...) {
 }
 parse_args <- function(args, flag) {
   if (any(args == "--help")) {
-    print_help()
+    script <- sub("--file=", "", args[startsWith(args, "--file")], fixed = TRUE)
+    print_help(script)
   }
   args[which(args == flag) + 1]
 }
diff --git a/scripts/update.R b/scripts/update.R
new file mode 100755
index 0000000..2c5ae08
--- /dev/null
+++ b/scripts/update.R
@@ -0,0 +1,5 @@
+#!/usr/bin/env Rscript
+
+renv::restore()
+renv::update(packages = c("hubPredEvalsData", "scoringutils"))
+renv::snapshot()