chore: Updated all site: links to not end .md

docs/cards/diataxis/cards.yml

docs/explanations/cloud-platform/aws.md

docs/explanations/cloud-platform/azure-and-entra-id-apps.md

docs/explanations/cloud-platform/gcloudadmin-accounts.md

docs/explanations/cloud-platform/gcp-budgets-alerts.md

docs/explanations/cloud-platform/gke-gitlab-runners.md

...anations/cloud-platform/google-cloud-permissions-model.md

docs/explanations/cloud-platform/service-infrastructure.md

docs/explanations/development/webapp-boilerplate.md

docs/explanations/git-gitlab/git.md

docs/explanations/git-gitlab/gitlab-release-automation.md

docs/explanations/misc/identifiers.md

docs/explanations/renovatebot/index.md

docs/howtos/aws/access-aws-console.md

docs/howtos/aws/audit-aws-console-access.md

docs/howtos/aws/create-aws-accounts.md

docs/howtos/aws/get-started-with-aws.md

docs/howtos/aws/use-aws-cli.md

docs/howtos/cloud-platform/create-gcloudadmin-account.md

docs/howtos/cloud-platform/respond-to-billing-alerts.md