[Bug]: Document link to operating installation instructions is broken

[CaptTofu]

What happened?

As a person who is new to this, I want to be able to see installation instructions
The link "Then follow the Jaeger Operator installation instructions.": gives me "not found"

Steps to reproduce

1. Go to repo main doc page. Click on link "Then follow the Jaeger Operator installation instructions."
   not found

Expected behavior

link goes to install instructions.

Relevant log output

Screenshot

No response

Additional context

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Jaeger backend version

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SDK

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Pipeline

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Stogage backend

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Operating system

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Deployment model

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Deployment configs