Example file links on quickstarts-preview plugin readme lead to 404s

[Robcwilliams]

The example .adoc & .yaml files links provided in the Quickstart-preview plugin README land on a 404. These should be updated to point to the latest example files.

Old
Example .adoc file: https://github.com/patternfly/patternfly-quickstarts/blob/main/packages/dev/src/quickstarts-data/mocks/asciidoc/TEMPLATE_PROCEDURE.adoc

Example .yaml file: https://github.com/patternfly/patternfly-quickstarts/blob/main/packages/dev/src/quickstarts-data/mocks/yamls/add-healthchecks-quickstart.yaml

New
Example .adoc file: https://github.com/patternfly/patternfly-quickstarts/blob/main/packages/vscode/test-data/TEMPLATE_PROCEDURE.adoc

Example .yaml file: https://github.com/patternfly/patternfly-quickstarts/blob/main/packages/vscode/test-data/add-healthchecks-quickstart.yaml