[openssl/web] 13124f: Fix typo in Policies intro

[James Muir]

  Branch: refs/heads/master
  Home:   https://github.com/openssl/web
  Commit: 13124f8a8e147f6a7b445dc7b13c5c43d08d048f
      https://github.com/openssl/web/commit/13124f8a8e147f6a7b445dc7b13c5c43d08d048f
  Author: James Muir <james at openssl.org>
  Date:   2023-11-06 (Mon, 06 Nov 2023)

  Changed paths:
    M policies/index.md

  Log Message:
  -----------
  Fix typo in Policies intro

Reviewed-by: Richard Levitte <levitte at openssl.org>
Reviewed-by: Paul Dale <pauli at openssl.org>
Reviewed-by: Tomas Mraz <tomas at openssl.org>
(Merged from https://github.com/openssl/web/pull/436)