Add platforms annotation to several tasks

Annotation about `linux/amd64`,`linux/s390x`,`linux/ppc64le` platforms
was added to all versions of the  tkn, git-cli, pull-request
and kubeconfig-creator tasks.

Signed-off-by: Yulia Gaponenko <yulia.gaponenko1@de.ibm.com>

task/git-cli/0.1/README.md

@@ -27,6 +27,10 @@ Command that needs to be run can be passed as a script to the task.
 
 * **commit**: The precise commit SHA after git operation is performed.
 
+### Platforms
+
+The Task can be run on `linux/amd64`, `linux/s390x` and `linux/ppc64le` platforms.
+
 ### Usage
 
 This task needs authentication to git in order to push after the git operation.

task/git-cli/0.1/git-cli.yaml

@@ -10,6 +10,7 @@ metadata:
     tekton.dev/pipelines.minVersion: "0.12.1"
     tekton.dev/tags: git
     tekton.dev/displayName: "git cli"
+    tekton.dev/platforms: "linux/amd64,linux/s390x,linux/ppc64le"
 spec:
   description: >-
     This task can be used to perform git operations.

task/git-cli/0.2/README.md

@@ -43,6 +43,10 @@ Command that needs to be run can be passed as a script to the task.
 
 * **commit**: The precise commit SHA after git operation is performed.
 
+### Platforms
+
+The Task can be run on `linux/amd64`, `linux/s390x` and `linux/ppc64le` platforms.
+
 ### Usage
 
 This task needs authentication to git in order to push after the git operation.

task/git-cli/0.2/git-cli.yaml

@@ -10,6 +10,7 @@ metadata:
     tekton.dev/categories: Git
     tekton.dev/tags: git
     tekton.dev/displayName: "git cli"
+    tekton.dev/platforms: "linux/amd64,linux/s390x,linux/ppc64le"
 spec:
   description: >-
     This task can be used to perform git operations.

task/kubeconfig-creator/0.1/README.md

@@ -54,6 +54,9 @@ kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/main/task/ku
 This will make your HTTPS connections insecure
 (_default:_ `false`)
 
+## Platforms
+
+The Task can be run on `linux/amd64`, `linux/s390x` and `linux/ppc64le` platforms.
 
 ## Usage
 

task/kubeconfig-creator/0.1/kubeconfig-creator.yaml

@@ -9,6 +9,7 @@ metadata:
     tekton.dev/categories: Deployment, Kubernetes
     tekton.dev/tags: deploy
     tekton.dev/displayName: "kubeconfig creator"
+    tekton.dev/platforms: "linux/amd64,linux/s390x,linux/ppc64le"
 spec:
   description: >-
     This Task do a similar job to the Cluster PipelineResource and

task/pull-request/0.1/README.md

@@ -130,6 +130,10 @@ in a vendor agnostic way [with these keys](https://github.com/jenkins-x/go-scm/b
 
 _See [pr-example/comments](../0.1/pr-example/comments) for examples of GitHub comments._
 
+## Platforms
+
+The Task can be run on `linux/amd64`, `linux/s390x` and `linux/ppc64le` platforms.
+
 ## Usage
 
 ### Permissions

task/pull-request/0.1/pull-request.yaml

@@ -9,6 +9,7 @@ metadata:
     tekton.dev/categories: Git
     tekton.dev/tags: SCM
     tekton.dev/displayName: "pull request"
+    tekton.dev/platforms: "linux/amd64,linux/s390x,linux/ppc64le"
 spec:
   description: >-
     This Task allows a user to interact with an SCM (source control management)

task/tkn/0.1/README.md

@@ -15,3 +15,7 @@ name      | description                                 | default
 --------- | ------------------------------------------- | -------
 tkn-image | `tkn` CLI container image to run this task. | gcr.io/tekton-releases/dogfooding/tkn
 ARGS      | The arguments to pass to the `tkn` CLI.     | No default. Required.
+
+### Platforms
+
+The Task can be run on `linux/amd64`, `linux/s390x` and `linux/ppc64le` platforms.

task/tkn/0.1/tkn.yaml

@@ -9,6 +9,7 @@ metadata:
     tekton.dev/pipelines.minVersion: "0.12.1"
     tekton.dev/categories: CLI
     tekton.dev/tags: cli
+    tekton.dev/platforms: "linux/amd64,linux/s390x,linux/ppc64le"
 spec:
   description: >-
     This task performs operations on Tekton resources using tkn

task/tkn/0.2/README.md

@@ -21,6 +21,10 @@ kubectl apply -f https://raw.githubusercontent.com/tektoncd/catalog/main/task/tk
 
 - **kubeconfig**: An [optional workspace](https://github.com/tektoncd/pipeline/blob/main/docs/workspaces.md#using-workspaces-in-tasks) that allows you to provide a `.kube/config` file for `tkn` to access the cluster. The file should be placed at the root of the Workspace with name `kubeconfig`.
 
+## Platforms
+
+The Task can be run on `linux/amd64`, `linux/s390x` and `linux/ppc64le` platforms.
+
 ## Usage
 
 1. Passing only `ARGS`

task/tkn/0.2/tkn.yaml

@@ -10,6 +10,7 @@ metadata:
     tekton.dev/categories: CLI
     tekton.dev/tags: cli
     tekton.dev/displayName: "Tekton CLI"
+    tekton.dev/platforms: "linux/amd64,linux/s390x,linux/ppc64le"
 spec:
   workspaces:
     - name: kubeconfig