Update the readme and the docs site to include Netlify hosting (#19293)

* add Netlify to Gatsby docs and readme

* Move Netlify to top

Author: sdras

www/src/data/diagram/static-hosts.yml

@@ -1,7 +1,7 @@
-- title: AWS Amplify
-  url: /docs/deploying-to-aws-amplify
 - title: Netlify
   url: /docs/deploying-to-netlify
+- title: AWS Amplify
+  url: /docs/deploying-to-aws-amplify
 - title: GitHub Pages
   url: /docs/how-gatsby-works-with-github-pages/
 - title: Surge.sh

www/src/data/sidebars/doc-links.yaml

@@ -34,6 +34,9 @@
             - title: Preparing a Site for Deployment
               link: /docs/preparing-for-deployment/
               breadcrumbTitle: Preparing for Deployment
+            - title: Deploying to Netlify
+              link: /docs/deploying-to-netlify/
+              breadcrumbTitle: Netlify
             - title: Deploying to AWS Amplify
               link: /docs/deploying-to-aws-amplify/
               breadcrumbTitle: AWS Amplify
@@ -52,9 +55,6 @@
             - title: Deploying to GitLab Pages
               link: /docs/deploying-to-gitlab-pages/
               breadcrumbTitle: GitLab Pages
-            - title: Deploying to Netlify
-              link: /docs/deploying-to-netlify/
-              breadcrumbTitle: Netlify
             - title: Deploying to Render
               link: /docs/deploying-to-render/
               breadcrumbTitle: Render