Markdown lint

Workflow runs for Markdown lint

• Update cli-usage.md

  failed:
  Markdown lint#991:Commitc59eee5pushedbyAlfDidNothingWrong
  main

  Feb 25, 202648s
  More actions for workflow run 991

• Update testnet keys

  failed:
  Markdown lint#990:Commit0373442pushedbyjkilpatr
  main

  Feb 4, 202644s
  More actions for workflow run 990

• Update testnet

  failed:
  Markdown lint#989:Commitd48641dpushedbyjkilpatr
  main

  Jan 27, 202645s
  More actions for workflow run 989

• Update setting-up-a-validator.md

  failed:
  Markdown lint#988:Commit72724b0pushedbyAlfDidNothingWrong
  main

  Jan 13, 202650s
  More actions for workflow run 988

• Update setting-up-a-validator.md

  failed:
  Markdown lint#987:Commit34b4c46pushedbyAlfDidNothingWrong
  main

  Jan 13, 202643s
  More actions for workflow run 987

• Update setting-up-a-validator.md

  failed:
  Markdown lint#986:Commitff2f34apushedbyAlfDidNothingWrong
  main

  Jan 13, 202646s
  More actions for workflow run 986

• Update cli-usage.md

  failed:
  Markdown lint#985:Commit2734242pushedbyAlfDidNothingWrong
  main

  Jan 6, 202646s
  More actions for workflow run 985

• Update cli-usage.md

  failed:
  Markdown lint#984:Commitf2d7ad9pushedbyAlfDidNothingWrong
  main

  Dec 11, 202550s
  More actions for workflow run 984