Add netlify config

docs/gatsby-config.js

@@ -7,7 +7,7 @@ module.exports = {
         subtitle: 'Platform',
         description: 'How to use the Apollo GraphQL platform',
         contentDir: 'source',
-        basePath: '/docs/platform',
+        basePath: '/docs',
         githubRepo: 'apollographql/apollo',
         sidebarCategories: {
           null: [

netlify.toml

@@ -0,0 +1,6 @@
+[build]
+  base    = "docs/"
+  publish = "docs/public/"
+  command = "gatsby build --prefix-paths && mkdir -p docs && mv public/* docs && mv docs public/"
+[build.environment]
+  NPM_VERSION = "6"