fix(docs): add server admin guide, cross-link with user guide

docs/server-admin.md

@@ -0,0 +1,66 @@
+# Server Administration
+
+This is the server administration guide for ONNX web.
+
+Please see [the user guide](user-guide.md) for descriptions of the client and each of the parameters.
+
+## Contents
+
+- [Server Administration](#server-administration)
+  - [Contents](#contents)
+  - [Configuration](#configuration)
+    - [Server Parameters](#server-parameters)
+  - [Containers](#containers)
+    - [CPU](#cpu)
+    - [CUDA](#cuda)
+    - [ROCm](#rocm)
+
+## Configuration
+
+Configuration is still very simple, loading models from a directory and parameters from a single JSON file.
+
+### Server Parameters
+
+You can limit the parameters in user requests to values within a reasonable range using the `params.json` file.
+
+The keys share the same name as the query string parameter, and the format for each numeric value is:
+
+```json
+{
+  "default": 50,
+  "min": 1,
+  "max": 100,
+  "step": 1
+}
+```
+
+Setting the `step` to a decimal value between 0 and 1 will allow decimal inputs, but the client is hard-coded to send 2
+decimal places in the query and only some parameters are parsed as floats, so values below `0.01` will effect the GUI
+but not the output images, and some controls effectively force a step of `1`.
+
+## Containers
+
+### CPU
+
+This is the simplest container to run and does not require any drivers or devices, but is also the slowest to
+generate images.
+
+### CUDA
+
+Requires CUDA container runtime and 11.x driver on the host.
+
+### ROCm
+
+Requires ROCm driver on the host.
+
+Run with podman using:
+
+```shell
+> TODO
+```
+
+Rootless podman does not appear to work:
+
+```none
+root is not video error
+```

docs/user-guide.md

@@ -12,6 +12,8 @@ the model and accelerator being used for each image pipeline. Image parameters a
 and you can either upload or paint the mask for inpainting and outpainting. The last few output images are shown below
 the image controls, making it easy to refer back to previous parameters or save an image from earlier.
 
+Please see [the server admin guide](server-admin.md) for details on how to configure and run the server.
+
 ## Contents
 
 - [User Guide](#user-guide)