chore: improve usability of external links (#778)

Author: xeniape

modules/ROOT/pages/export.adoc

@@ -3,15 +3,15 @@
 
 == USA
 
-The USA adopts the https://en.wikipedia.org/wiki/Export_Administration_Regulations[Export Administration Regulations (EAR)] as the primary regulation to control exports.
+The USA adopts the https://en.wikipedia.org/wiki/Export_Administration_Regulations[Export Administration Regulations (EAR){external-link-icon}^] as the primary regulation to control exports.
 
 All of our products are outside of the scope of EAR because they fall under the _publicly available_ exemption and do not contain non-standard cryptography.
 
 NOTE: That means E-Mail notifications to the NSA and BIS are not required and are therefore not published here.
 
 In particular:
 
-* We are exempt under https://www.ecfr.gov/current/title-15/subtitle-B/chapter-VII/subchapter-C/part-734/section-734.3[EAR 734.3(b)] because we publish according to https://www.ecfr.gov/current/title-15/subtitle-B/chapter-VII/subchapter-C/part-734/section-734.7[EAR 734.7]
-* We are exempt under https://www.ecfr.gov/current/title-15/subtitle-B/chapter-VII/subchapter-C/part-742/section-742.15[EAR 742.15(b)] as our software includes only https://ecfr.io/Title-15/Section-772.1[standard encryption]
+* We are exempt under https://www.ecfr.gov/current/title-15/subtitle-B/chapter-VII/subchapter-C/part-734/section-734.3[EAR 734.3(b){external-link-icon}^] because we publish according to https://www.ecfr.gov/current/title-15/subtitle-B/chapter-VII/subchapter-C/part-734/section-734.7[EAR 734.7{external-link-icon}^]
+* We are exempt under https://www.ecfr.gov/current/title-15/subtitle-B/chapter-VII/subchapter-C/part-742/section-742.15[EAR 742.15(b){external-link-icon}^] as our software includes only https://ecfr.io/Title-15/Section-772.1[standard encryption{external-link-icon}^]
 
-The Stackable Data Platform is open source, and the source code of all the components can be found on https://github.com/stackabletech/[GitHub].
+The Stackable Data Platform is open source, and the source code of all the components can be found on https://github.com/stackabletech/[GitHub{external-link-icon}^].

modules/ROOT/pages/kubernetes/aks.adoc

@@ -1,6 +1,6 @@
 = Azure Kubernetes Service (AKS)
 
-https://azure.microsoft.com/en-us/products/kubernetes-service
+https://azure.microsoft.com/en-us/products/kubernetes-service[https://azure.microsoft.com/en-us/products/kubernetes-service{external-link-icon}^]
 
 Automatic Kubernetes clusters are not supported, as the xref:secret-operator:index.adoc[secret-operator] requires special privileges that are not granted in automatic Kubernetes clusters.
 
@@ -47,4 +47,3 @@ image::managed-k8s/aks/6.png[]
 Access your Kubernetes by clicking on the `Connect` button and following the instructions.
 +
 image::managed-k8s/aks/7.png[]
-

modules/ROOT/pages/kubernetes/eks.adoc

@@ -1,6 +1,6 @@
 = Amazon Elastic Kubernetes Service (EKS)
 
-https://aws.amazon.com/eks/
+https://aws.amazon.com/eks/[https://aws.amazon.com/eks/{external-link-icon}^]
 
 Please make sure that you have a default StorageClass in your cluster, so that PVCs will be provisioned.
 

modules/ROOT/pages/kubernetes/gke.adoc

@@ -1,6 +1,6 @@
 = Google Kubernetes Engine (GKE)
 
-https://cloud.google.com/kubernetes-engine
+https://cloud.google.com/kubernetes-engine[https://cloud.google.com/kubernetes-engine{external-link-icon}^]
 
 Autopilot clusters are not suported, as the xref:secret-operator:index.adoc[secret-operator] requires special privileges that are not granted in Autopilot clusters.
 

modules/ROOT/pages/kubernetes/huawei-cloud.adoc

@@ -1,6 +1,6 @@
 = Huawei Cloud Container Engine (CCE)
 
-https://www.huaweicloud.com/intl/en-us/product/cce.html
+https://www.huaweicloud.com/intl/en-us/product/cce.html[https://www.huaweicloud.com/intl/en-us/product/cce.html{external-link-icon}^]
 
 Huawei Cloud uses a non-standard Kubelet state directory.
 For this reason the secret-operator and listener-operator on Huawei Cloud require special handling.

modules/ROOT/pages/kubernetes/ibm-cloud.adoc

@@ -1,6 +1,6 @@
 = IBM Cloud Kubernetes Service
 
-https://www.ibm.com/products/kubernetes-service
+https://www.ibm.com/products/kubernetes-service[https://www.ibm.com/products/kubernetes-service{external-link-icon}^]
 
 IBM Cloud Kubernetes Service uses a non-standard Kubelet state directory.
 For this reason the secret-operator and listener-operator on IBM Cloud Kubernetes Service require special handling.

modules/ROOT/pages/kubernetes/index.adoc

@@ -28,12 +28,12 @@ Stackable's control plane is built around Kubernetes, and we'll give some brief
 
 === Installing kubectl
 
-Stackable operators and their services are managed by applying manifest files to the Kubernetes cluster. For this purpose, you need to have the `kubectl` tool installed. Follow the instructions https://kubernetes.io/docs/tasks/tools/#kubectl[here] for your platform.
+Stackable operators and their services are managed by applying manifest files to the Kubernetes cluster. For this purpose, you need to have the `kubectl` tool installed. Follow the instructions https://kubernetes.io/docs/tasks/tools/#kubectl[here{external-link-icon}^] for your platform.
 
 === Installing Kubernetes using Kind
 Kind offers a very quick and easy way to bootstrap your Kubernetes infrastructure in Docker. The big advantage of this is that you can simply remove the Docker containers when you're finished and clean up easily, making it great for testing and development.
 
-If you don't already have Docker then visit https://docs.docker.com/get-docker/[Docker Website] to find out how to install Docker. Kind is a single executable that performs the tasks of installing and configuring Kubernetes for you within Docker containers. The https://kind.sigs.k8s.io/docs/user/quick-start/[Kind Website] has instructions for installing Kind on your system.
+If you don't already have Docker then visit https://docs.docker.com/get-docker/[Docker Website{external-link-icon}^] to find out how to install Docker. Kind is a single executable that performs the tasks of installing and configuring Kubernetes for you within Docker containers. The https://kind.sigs.k8s.io/docs/user/quick-start/[Kind Website{external-link-icon}^] has instructions for installing Kind on your system.
 
 Once you have both of these installed then you can build a Kubernetes cluster in Docker. We're going to create a simple, single node cluster to test out Stackable, with the one node hosting both the Kubernetes control plane and the Stackable services.
 
@@ -80,5 +80,5 @@ Metrics-server is running at https://127.0.0.1:6443/api/v1/namespaces/kube-syste
 
 === Configuring the cluster domain
 
-In case a non-default cluster domain is used as described in https://kubernetes.io/docs/tasks/administer-cluster/dns-custom-nameservers/[Customizing DNS Service],
+In case a non-default cluster domain is used as described in https://kubernetes.io/docs/tasks/administer-cluster/dns-custom-nameservers/[Customizing DNS Service{external-link-icon}^],
 Stackable operators can be configured accordingly. This is described in detail in the xref:guides:kubernetes-cluster-domain.adoc[Configuring the Kubernetes cluster domain] guide.

modules/ROOT/pages/kubernetes/ionos-managed-k8s.adoc

@@ -1,6 +1,6 @@
 = IONOS managed Kubernetes
 
-https://cloud.ionos.com/managed/kubernetes
+https://cloud.ionos.com/managed/kubernetes[https://cloud.ionos.com/managed/kubernetes{external-link-icon}^]
 
 TIP: IONOS also offers a xref:kubernetes/ionos-managed-stackable.adoc[managed Stackable service], which simplifies the usage of Stackable.
 

modules/ROOT/pages/kubernetes/ionos-managed-stackable.adoc

@@ -1,5 +1,5 @@
 = IONOS managed Stackable
 
-https://cloud.ionos.com/managed/managed-stackable
+https://cloud.ionos.com/managed/managed-stackable[https://cloud.ionos.com/managed/managed-stackable{external-link-icon}^]
 
 > The Managed Stackable Data Platform from IONOS Cloud is designed to enable you to work with maximum efficiency: Simply select the appropriate data management tools for your respective purpose, build individual stacks for yourself or your customers and make all your data productively usable as quickly as possible

modules/ROOT/pages/kubernetes/kind.adoc

@@ -1,3 +1,3 @@
 = kind
 
-https://kind.sigs.k8s.io/
+https://kind.sigs.k8s.io/[https://kind.sigs.k8s.io/{external-link-icon}^]