Update docs [ci skip]

website/docs/api/cli.md

@@ -14,6 +14,7 @@ menu:
   - ['evaluate', 'evaluate']
   - ['package', 'package']
   - ['project', 'project']
+  - ['ray', 'ray']
 ---
 
 spaCy's CLI provides a range of helpful commands for downloading and training
@@ -1134,3 +1135,45 @@ $ python -m spacy project dvc [project_dir] [workflow] [--force] [--verbose]
 | `--verbose`, `-V` |  Print more output generated by DVC. ~~bool (flag)~~                                                              |
 | `--help`, `-h`    | Show help message and available arguments. ~~bool (flag)~~                                                        |
 | **CREATES**       | A `dvc.yaml` file in the project directory, based on the steps defined in the given workflow.                     |
+
+## ray {#ray new="3"}
+
+The `spacy ray` CLI includes commands for parallel and distributed computing via
+[Ray](https://ray.io).
+
+<!-- TODO: add links to parallel training docs and project template -->
+
+<Infobox variant="warning" title="Important note">
+
+To use this command, you need the
+[`spacy-ray`](https://github.com/explosion/spacy-ray) package installed.
+Installing the package will automatically add the `ray` command to the spaCy
+CLI.
+
+</Infobox>
+
+### ray train {#ray-train tag="command"}
+
+Train a spaCy pipeline using [Ray](https://ray.io) for parallel training. The
+command works just like [`spacy train`](/api/cli#train).
+
+```cli
+$ python -m spacy ray train [config_path] [--code-path] [--strategy] [--n-workers] [--address] [--gpu-id] [--verbose] [overrides]
+```
+
+> #### Example
+>
+> ```cli
+> $ python -m spacy ray train config.cfg --n-workers 2
+> ```
+
+| Name                | Description                                                                                                                                                                                |
+| ------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
+| `config_path`       | Path to [training config](/api/data-formats#config) file containing all settings and hyperparameters. ~~Path (positional)~~                                                                |
+| `--code`, `-c`      | Path to Python file with additional code to be imported. Allows [registering custom functions](/usage/training#custom-functions) for new architectures. ~~Optional[Path] \(option)~~       |
+| `--n-workers`, `-n` | The number of workers. Defaults to `1`. ~~int (option)~~                                                                                                                                   |
+| `--address`, `-a`   | Optional address of the Ray cluster. Defaults to `None`. ~~Optional[str] \(option)~~                                                                                                       |
+| `--gpu-id`, `-g`    | GPU ID or `-1` for CPU. Defaults to `-1`. ~~int (option)~~                                                                                                                                 |
+| `--verbose`, `-V`   | Display more information for debugging purposes. ~~bool (flag)~~                                                                                                                           |
+| `--help`, `-h`      | Show help message and available arguments. ~~bool (flag)~~                                                                                                                                 |
+| overrides           | Config parameters to override. Should be options starting with `--` that correspond to the config section and value to override, e.g. `--paths.train ./train.spacy`. ~~Any (option/flag)~~ |

website/docs/usage/projects.md

@@ -796,11 +796,9 @@ workflows, including
 evaluation workflow that lets you compare two different models and their
 results.
 
-<Project id="integrations/prodigy">
+<!-- TODO: <Project id="integrations/prodigy">
 
-<!-- TODO: -->
+</Project> -->
-
-</Project>
 
 ---
 
@@ -943,12 +941,14 @@ your results.
 
 ![Screenshot: Parameter importance using config values](../images/wandb2.jpg 'Parameter importance using config values')
 
+<!-- TODO:
+
 <Project id="integrations/wandb">
 
 Get started with tracking your spaCy training runs in Weights & Biases using our
 project template. It includes a simple config using the `WandbLogger`, as well
 as a custom logger implementation you can adjust for your specific use case.
 
-<!-- TODO: -->
-
 </Project>
+
+-->

website/src/components/code.js

@@ -14,6 +14,7 @@ import GitHubCode from './github'
 import classes from '../styles/code.module.sass'
 
 const WRAP_THRESHOLD = 30
+const CLI_GROUPS = ['init', 'debug', 'project', 'ray']
 
 export default props => (
     <Pre>
@@ -99,7 +100,6 @@ function replacePrompt(line, prompt, isFirst = false) {
 }
 
 function parseArgs(raw) {
-    const commandGroups = ['init', 'debug', 'project']
     let args = raw.split(' ').filter(arg => arg)
     const result = {}
     while (args.length) {
@@ -108,7 +108,7 @@ function parseArgs(raw) {
             const isFlag = !args.length || (args[0].length > 1 && args[0].startsWith('-'))
             result[opt] = isFlag ? true : args.shift()
         } else {
-            const key = commandGroups.includes(opt) ? `${opt} ${args.shift()}` : opt
+            const key = CLI_GROUPS.includes(opt) ? `${opt} ${args.shift()}` : opt
             result[key] = null
         }
     }