docs: bug Notification templates link is broken

[alexrecuenco]

Checklist:

• I've included steps to reproduce the bug.
• I've included the version of argo rollouts.

Describe the bug

when clicking the "Notification templates" link in the docs https://argo-rollouts.readthedocs.io/en/stable/generated/notification-services/slack/#templates

The argo-rollouts website kind of glitches

Target URL https://argo-rollouts.readthedocs.io/en/stable/generated/notification-services/templates.md

Screenshots

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Message from the maintainers:

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[kostis-codefresh]

It seems that this is already fixed in the latest version of docs https://argo-rollouts.readthedocs.io/en/latest/generated/notification-services/slack/#templates

So it will be automatically fixed when 1.9.x is released and becomes the new stable.

Unless @zachaller wants to update the stable tag today to point to a more recent commit.