Add .devcontainer/vale support

.devcontainer/Dockerfile

@@ -0,0 +1,6 @@
+FROM mcr.microsoft.com/vscode/devcontainers/ruby:0-2.7-bullseye
+
+RUN wget https://github.com/errata-ai/vale/releases/download/v2.21.0/vale_2.21.0_Linux_64-bit.tar.gz -O /tmp/vale.tar.gz \
+ && cd /usr/local/bin \
+ && tar xf /tmp/vale.tar.gz \
+ && rm /tmp/vale.tar.gz

.devcontainer/devcontainer.json

@@ -0,0 +1,13 @@
+// For format details, see https://aka.ms/devcontainer.json. For config options, see the README at:
+// https://github.com/microsoft/vscode-dev-containers/tree/v0.245.0/containers/ruby
+{
+	"name": "Ruby",
+	"build": {
+		"dockerfile": "Dockerfile"
+	},
+	"runArgs": ["--userns=keep-id"],
+
+	"remoteUser": "vscode",
+	"containerUser": "vscode",
+	"workspaceMount": "source=${localWorkspaceFolder},target=/workspaces/${localWorkspaceFolderBasename},type=bind,Z"
+}

.gitignore

@@ -4,4 +4,5 @@ _site/
 .jekyll-metadata
 .bundle/
 vendor/
+.styles/
 .vscode/

.vale.ini

@@ -0,0 +1,7 @@
+StylesPath = .styles
+MinAlertLevel = suggestion
+Packages = Microsoft, write-good
+
+[*]
+BasedOnStyles = Vale, Microsoft, write-good
+write-good.E-Prime = NO