resend: add page (#21702)

Co-authored-by: Meinard Francisco <44516102+znarfm@users.noreply.github.com>
Co-authored-by: Ivan Baluta <ivanbaluta.dev@gmail.com>

pages/common/resend.md

@@ -0,0 +1,36 @@
+# resend
+
+> Send and manage emails from the command-line.
+> More information: <https://github.com/resend/resend-cli#commands>.
+
+- Log in to Resend (opens browser for authentication):
+
+`resend login`
+
+- Log in with an API key directly (for CI/agents):
+
+`resend login --key {{re_xxxxxxxxx}}`
+
+- Send an email:
+
+`resend emails send --from {{email@example.com}} --to {{recipient@example.com}} --subject "{{subject}}" --text "{{message}}"`
+
+- Create a template:
+
+`resend templates create --name "{{Welcome}}" --subject "{{subject}}" --html "{{<h1>Hello</h1>}}"`
+
+- Send an email using a template:
+
+`resend emails send --to {{recipient@example.com}} --template {{template_id}}`
+
+- List verified domains:
+
+`resend domains {{[ls|list]}}`
+
+- Show current authentication status:
+
+`resend whoami`
+
+- Check CLI version, API key, and domain status:
+
+`resend doctor`