Add Vale instructions.

docs/configure/spell-check.md

@@ -6,18 +6,24 @@ sidebar_position: 5
 
 # Configure spell check
 
+:::info important
+Documentation repositories are in the process of being migrated to use Vale instead of [CSpell](https://cspell.org/).
+
+Refer to the [instructions on how to use Vale](../contribute/run-vale.md).
+:::
+
 This template repository uses [CSpell](https://cspell.org/) to check for misspelled words
 throughout the documentation.
 CSpell runs when you run [`npm run lint:spelling`](../create/run-in-development.md).
 
-You usually don't need to edit the [`.cspell.json`](../create/repo-structure.md#-cspelljson) file itself.
+You don't often need to edit the [`.cspell.json`](../create/repo-structure.md#-cspelljson) file itself.
 However, you can add ignore paths or files if needed.
 
 :::note
 We don't recommend ignoring entire files by placing them into `.cspell.json`.
 
 Instead, we recommend using [in-line comments](https://cspell.org/configuration/document-settings/)
-to disable spell check – for example, if you have a snippet of code with an example API key
+to disable spell check–for example, if you have a snippet of code with an example API key
 which CSpell picks up.
 
 If you use a new term that causes spell check to fail, you can [add the term to your project's dictionary](../create/run-in-development.md#npm-run-lintspelling).

docs/contribute/run-vale.md

@@ -0,0 +1,91 @@
+---
+description: Run the spelling and style linter
+sidebar_position: 7
+---
+
+# Run the spelling and style linter
+
+The documentation suite uses [Vale](https://vale.sh/) as the style guide and spelling linter.
+Vale is currently integrated into the continuous integration (CI) pipeline and is executed on each
+pull request (PR) using a GitHub action. You can select the **Details** link to view the failures.
+
+:::info important
+The Vale GitHub workflow runs on all Markdown files (and for some repos YAML files) in the repository, not
+only the ones you've updated. However, only items related to files in your PR receive alerts.
+Failures in the workflow won't prevent your PR from being merged.
+
+You can run Vale locally to view issues directly related to your PR.
+:::
+
+<p align = "center">
+![Vale CI](../assets/vale-ci.png)
+</p>
+
+## Run locally
+
+Run Vale locally to view issues related to the Markdown files you're working on. You can run Vale using the
+command line, or you can integrate it into a [supported editor](https://vale.sh/docs/integrations/guide/) to
+view issues in real-time.
+
+### Use the command line
+
+1. [Install Vale locally](https://vale.sh/docs/vale-cli/installation/#package-managers).
+
+1. Checkout the repo containing our Vale settings:
+
+   ```bash
+   git clone https://github.com/Consensys/docs-gha.git
+   ```
+
+1. Override the default location of the `.vale.ini` file by setting the `VALE_CONFIG_PATH` environment
+    variable to the location of the file in the repo. For example, on macOS this is:
+
+    ```bash
+    export VALE_CONFIG_PATH="/Users/{user-name}/documentation/docs-gha/spelling/.vale.ini"
+    ```
+
+    :::note
+    To persist the ENV variable across sessions you’ll need to add the above command it to the appropriate
+    file. For example `~/.zshrc` (default shell in newer macOS versions).
+    :::
+
+1. Run the `vale` command in your terminal with the location of your file. For example:
+
+    ```bash
+    vale node-sync.md
+    ```
+
+    ![Run Vale](../assets/use-vale.png)
+
+    :::note
+    If you pass a file that does not exist, Vale will not alert you that the file cannot be found.
+    You'll receive a message similar to `0 errors, 0 warnings and 0 suggestions` in the terminal.
+    :::
+
+### Use the VS Code integration
+
+You must have the VS Code editor installed to use this integration.
+
+1. [Install Vale locally](https://vale.sh/docs/vale-cli/installation/#package-managers).
+
+1. Checkout the repo containing our Vale settings:
+
+   ```bash
+   git clone https://github.com/Consensys/docs-gha.git
+   ```
+
+1. [Install the VS Code extension](https://marketplace.visualstudio.com/items?itemName=ChrisChinchilla.vale-vscode)
+
+1. In the settings for the Vale VS Code extension, set the location of the `.vale.ini` file, and
+    enable the spell check. The `.vale.ini` file is located within the `spelling` directory in the
+    `docs-gha` repo that you checked out.
+
+    ![VS Code extension settings](../assets/vs-code-ext.png)
+
+1. Restart VS Code.
+
+## Contribute to the spell checker
+
+You can contribute to the spell checker by submitting a PR to the [`docs-gha` repository](https://github.com/Consensys/docs-gha).
+
+Learn more about how to [configure Vale](https://github.com/Consensys/docs-gha/tree/main/spelling#configure-vale).