Remove EOL releases

Mark Tekton as graduated from the CDF on the home page.
Update the OpenSSF link to point to the correct section.
Signed-off-by: NAndrea Frittoli <andrea.frittoli@gmail.com>

Update the sync script. If the image is not found locally, the src is
updated to the corresponding raw file on the repo.

Signed-off-by: BobDu <i@bobdu.cc>

As of now the latest version of CLI displayed is v0.23.1 whereas the
latest current release is v0.28.0. Updating the sync/config/cli.yaml
with the latest releases that were done post v0.23.1
Signed-off-by: Nvinamra28 <jvinamra776@gmail.com>

Fix a simple grammatical mistake

Add the docs for Triggers v0.22.0

Updating the website configuration to include the latest
pipeline release - v0.42.0

change "tekton-triggers-core-controller" to "tekton-triggers-core-interceptors"

Point the Docsy dependency to the current repo HEAD. The latest commit
fixes a problem rendering angle brackets.

To update this after after the next Docsy minor release to point to a
tag again.

Typo fixes and small quality of life improvements:

- Typo in heading sentence in triggers getting started
- Update links in landing page
- Add scrolling and margin to version selector.
- Typo in community page, misson instead of mission
- Add vertical scrolling to extra-long code samples.
- RSS button styles to match other buttons styles.

Create a new entry for blog posts in the contribution guidelines
section.

Signed-off-by: NAndrea Frittoli <andrea.frittoli@gmail.com>

Signed-off-by: NAndrea Frittoli <andrea.frittoli@gmail.com>

Create the blog folder for the Tekton website.

Signed-off-by: NAndrea Frittoli <andrea.frittoli@gmail.com>

Bup docsy version and comment out jinja2 code in vendor guidelines.

Some highlights about this new Docsy version:

- Better styles for tabs
- Improved readfile shortcode rendering
- Consistent code block styles

Community page with links to guidelines, communication channels and the
community repository.

Issues are created using the templates from tektoncd/.github,
the .github/issue_template.md file in this repo is for the
legacy template approach and no longer used.

Fixing a small typo which breaks the How-to Guide if followed blindly/copy-pasted.
The documentation refers to `pipeline,yaml` in line 49, but I believe it should be referring to `pipeline.yaml` ( using a punctuation instead of a comma ).

- Add contribution guidelines for platform specific docs
- Simplify existing contribution guidelines

This new section surfaces the installation documentation for all the
Tekton components.

This first iteration adds Pipelines and Triggers, more work is required
for other components docs to be included here.

- Add new beginners tutorial for Triggers.
- Modify Pipelines example to use one parameter.
- Make some editorial changes to the previous tutorials.

Docsy update v0.3.0 => v0.4.0

This PR updates the site and Docker configurations to run on an
environment closer to the Netlify production environment.

Move jquery back to header

Implement click-to-copy for code blocks. Code blocks with no syntax
highlight won't show the button

Additional changes:

- Bump up Popper and Bootstrap versions
- Move script-importing code from header to the scripts partial

Tekton Pipelines currently does not install on Kubernetes 1.25 due
to use of some deprecated resources that have been removed in that
release. Pin the version used for the `minikube start` command so
users following the tutorial have a working environment.

Signed-off-by: NVincent Demeester <vdemeest@redhat.com>

To avoid having to delete and reapply a Pipelinerun when developing your
code, this PR switches to `generateName`, which adds a suffix to have a
unique name each time.

Additionally, this PR also fixes a problem with the latest version of
the `git-clone` Task in the Git clone tutorial.

Add the docs for Triggers v0.21.0