cradle-deploy: add page (#2562)

pages/common/cradle-deploy.md

@@ -0,0 +1,19 @@
+# cradle deploy
+
+> Manage Cradle deployments.
+
+- Deploy Cradle to a server:
+
+`cradle deploy production`
+
+- Deploy static assets to Amazon S3:
+
+`cradle deploy s3`
+
+- Deploy static assets including the Yarn "components" directory:
+
+`cradle deploy s3 --include-yarn`
+
+- Deploy static assets including the "upload" directory:
+
+`cradle deploy s3 --include-upload`