Introductory guide for newcomers. This is a two-file quickstart that
shows a simple example to create a task and a pipeline.

These tutorials do not include new information. The information here is
reorganized to be easier to understand for newcomers. Including
prescritpive steps that the user just has to copy/paste .

Signed-off-by: NVille Aikas <vaikas@chainguard.dev>

- Move the contribution guidelines to the documentation folder so they
  show up in the website. Some minor updates were introduced to reflect
  the agreements about documentation strategy.

- Update the roadmap. It now includes the main points agreed about the
  docs strategy going forward.

[statement] I could not add one or two proper images on landing page and leave it for other PR, and the other requirements done in this PR.
 - change title from "Tekton Documentation" to "Welcome to Tekton"
 - remove "What's next"
-  add a short blurb with a link to the tekton overview page where details all components completely(to keep clear separation between landing page and overview page content）

Signed-off-by: Nshaowenchen <mail@chenshaowen.com>

Fedora 30-32 are no longer supported, updated info for releases currently available at https://copr.fedorainfracloud.org/coprs/chmouel/tektoncd-cli/

Changing links to any reference to tektoncd/hub.
Signed-off-by: NVincent Demeester <vdemeest@redhat.com>

Changing links to any reference to tektoncd/pipeline.
Signed-off-by: NVincent Demeester <vdemeest@redhat.com>

Changing links to any reference to tektoncd/triggers.
Signed-off-by: NVincent Demeester <vdemeest@redhat.com>

Changing links to any reference to tektoncd/cli.
Signed-off-by: NVincent Demeester <vdemeest@redhat.com>

Changing links to any reference to tektoncd/dashboard.
Signed-off-by: NVincent Demeester <vdemeest@redhat.com>

Replace apt install for dpkg -i

dpkg/rpm is used when installing TektonCD CLI from package and apt/dnf when installing from a repository.

Uses curl -LO (instead of wget) as it is used later in the same page to get the LINK-TO-TARBALL.

Changing links to any reference to tektoncd/website.
Signed-off-by: NVincent Demeester <vdemeest@redhat.com>

Changing links to any reference to tektoncd/operator.
Signed-off-by: NVincent Demeester <vdemeest@redhat.com>

Update links to the Katacoda tutorials to point to the official versions
at https://katacoda.com/tektoncd and update the dashboard scenario naming
to be consistent with other (i.e. drop the redundant `tekton-` from the
name + URL).

fixing the overview section markdown metadata so it is visually consistent with the other sections of the doc

Set the latest version of each component as the current one, add
everything else, including master, to the vault.
Remove the _index.md files that are brought in via sync.
Signed-off-by: NAndrea Frittoli <andrea.frittoli@gmail.com>

Publishes a comprehensive overview of Tekton.

Instead, assume a cluster already exists, or briefly document using
`kind` to set up a local cluster for testing.

without --dry-run=client option, the create & replace command will fail.

Tekton is a cloud native project, not necessarily a kubernetes native
project, and in fact (beyond basing our design around k8s style
resources and using k8s containers) we try to minimize our coupling to
k8s (at least in our API).

If you look at our README you can see that we are k8s-style and cloud
native: https://github.com/tektoncd/pipeline#-tekton-pipelines

You can see this reflected in our mission as well:
"Be the industry-standard, cloud-native CI/CD platform components and
ecosystem."
https://github.com/tektoncd/community/blob/master/roadmap.md#mission-and-vision

This commit updates the wording to be a bit more accurate.

down in the docs

- Also updated the output from hello goodbye to goodbye world

- Added a second task creation
- Added a pipeline example
- Added links back and forth from the page
Signed-off-by: NJJ Asghar <jjasghar@gmail.com>
Signed-off-by: NPaul Czarkowski <username.taken@gmail.com>
Co-authored-by: NPaul Czarkowski <username.taken@gmail.com>

Adds guidance for formatting lists.

Fix a few typos in Concepts/_index.md

Changed `name` to `generateName` because of the behavior of the `--dry-run` of `tkn`.
Changed the `tkn` command for the logs at the end, because of the `generateName` is different per run.
Signed-off-by: NJJ Asghar <jjasghar@gmail.com>
Signed-off-by: NPaul Czarkowski <username.taken@gmail.com>

Changed from `apply` to `create` due to the declarative nature of `apply`. You can not use `generateName` with `apply`.
The error that happens is:

```
❯ kubectl apply -f taskRun.yml
error: error when retrieving current configuration of:
Resource: "tekton.dev/v1beta1, Resource=taskruns", GroupVersionKind: "tekton.dev/v1beta1, Kind=TaskRun"
Name: "", Namespace: "hello-world-pipeline"
from server for: "taskRun.yml": resource name may not be empty
```
The following is the correct behavior. 
```
❯ kubectl create -f taskRun.yml
taskrun.tekton.dev/echo-run-c5dtm created
```
Please look at:  https://github.com/kubernetes/kubernetes/issues/44501#issuecomment-294255660Signed-off-by: NJJ Asghar <jjasghar@gmail.com>

Fixes a spelling error on the landing page

Fixes username formatting.

Fixes more username formatting.

Update the text to reflect the actual destination since we don't
currently have a try.tekton.dev subdomain.

- Include tkn task start and --dry-run
- Reword portions of the section

"compliation" should be "compilation".