Mistake in dnsdist online documentation

[Eddict]

• This is not a support question, I have read about opensource and will send support questions to the IRC channel, GitHub Discussions or the mailing list.
• I have read and understood the 'out in the open' support policy
• I have read and understood the PowerDNS AI policy

• Program: dnsdist
• Issue type: Bug report

Short description

The documentation has a mistake in the 'The same backend configuration in yaml' example.
DNS-over-TLS outgoing

Environment

N/A

Steps to reproduce

N/A

Expected behaviour

backends:
  - address: "[2001:DB8::1]:853"
    protocol: "DoT"
    tls:
      provider: "OpenSSL"
      subject_name: "dot.powerdns.com"
      validate_certificate: true

(provider should not be a sequence)

Actual behaviour

backends:
  - address: "[2001:DB8::1]:853"
    protocol: "DoT"
    tls:
      - provider: "OpenSSL"
        subject_name: "dot.powerdns.com"
        validate_certificate: true

Other information