doc: Use neutral domains.

docs/content/providers/consul-catalog.md

@@ -29,7 +29,7 @@ Attach tags to your services and let Traefik do the rest!
     Attaching tags to services
 
     ```yaml
-    - traefik.http.services.my-service.rule=Host(`mydomain.com`)
+    - traefik.http.services.my-service.rule=Host(`example.com`)
     ```
 
 ## Routing Configuration

docs/content/providers/docker.md

@@ -40,7 +40,7 @@ and [Docker Swarm Mode](https://docs.docker.com/engine/swarm/).
       my-container:
         # ...
         labels:
-          - traefik.http.routers.my-container.rule=Host(`mydomain.com`)
+          - traefik.http.routers.my-container.rule=Host(`example.com`)
     ```
 
 ??? example "Configuring Docker Swarm & Deploying / Exposing Services"
@@ -79,13 +79,13 @@ and [Docker Swarm Mode](https://docs.docker.com/engine/swarm/).
       my-container:
         deploy:
           labels:
-            - traefik.http.routers.my-container.rule=Host(`mydomain.com`)
+            - traefik.http.routers.my-container.rule=Host(`example.com`)
             - traefik.http.services.my-container-service.loadbalancer.server.port=8080
     ```
 
 ## Routing Configuration
 
-When using Docker as a [provider](https://docs.traefik.io/providers/overview/),
+When using Docker as a [provider](./overview.md),
 Traefik uses [container labels](https://docs.docker.com/engine/reference/commandline/run/#set-metadata-on-container--l---label---label-file) to retrieve its routing configuration.
 
 See the list of labels in the dedicated [routing](../routing/providers/docker.md) section.

docs/content/providers/kubernetes-ingress.md

@@ -40,7 +40,7 @@ metadata:
 
 spec:
   rules:
-    - host: foo.com
+    - host: example.net
       http:
         paths:
           - path: /bar
@@ -266,7 +266,7 @@ _Optional, Default: empty_
 
 ```toml tab="File (TOML)"
 [providers.kubernetesIngress.ingressEndpoint]
-  hostname = "foo.com"
+  hostname = "example.net"
   # ...
 ```
 
@@ -274,12 +274,12 @@ _Optional, Default: empty_
 providers:
   kubernetesIngress:
     ingressEndpoint:
-      hostname: "foo.com"
+      hostname: "example.net"
     # ...
 ```
 
 ```bash tab="CLI"
---providers.kubernetesingress.ingressendpoint.hostname=foo.com
+--providers.kubernetesingress.ingressendpoint.hostname=example.net
 ```
 
 Hostname used for Kubernetes Ingress endpoints.

docs/content/providers/rancher.md

@@ -35,7 +35,7 @@ Attach labels to your services and let Traefik do the rest!
 
     ```yaml
     labels:
-      - traefik.http.services.my-service.rule=Host(`mydomain.com`)
+      - traefik.http.services.my-service.rule=Host(`example.com`)
     ```
 
 ## Routing Configuration