Added resources for businesses

docs/content/includes/.markdownlint.json

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+{
+  "extends": "../../.markdownlint.json",
+  "MD041": false
+}

docs/content/includes/traefik-for-business-applications.md

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+---
+
+!!! question "Using Traefik for Business Applications?"
+
+    If you are using Traefik for commercial applications,
+    consider the [Enterprise Edition](https://traefik.io/traefik-enterprise/).
+    You can use it as your:
+
+    - [Kubernetes Ingress Controller](https://traefik.io/solutions/kubernetes-ingress/)
+    - [Docker Swarm and Docker Enterprise](https://traefik.io/solutions/docker-swarm-ingress/)
+    - [API Gateway](https://traefik.io/solutions/api-gateway/)
+
+    Traefik Enterprise enables centralized access management,
+    distributed Let's Encrypt,
+    and other advanced capabilities.
+    Learn more in [this 15-minute technical walkthrough](https://info.traefik.io/watch-traefikee-demo).