I noticed other errors on the Admin Guide.
I put all of my findings in the following list:
6.2.2.1 -> mdb is not present as a choice
6.2.3.3 -> I think it could be useful to specify that in case that server is consumer, all modifications coming from syncrepl still continue to be received and written
6.2.3.6 -> "Note: When the backend to pass a query to is selected, slapd looks at the suffix line(s) in each database definition in the order they appear in the file. Thus, if one database suffix is a prefix of another, it must appear BEFORE it in the config file."
6.2.3.7 - as "syncrepl" options don't appear the following: "keepalive", "network-timeout", "timeout", "tls_protocol_min" and "suffixmassage" -> "The syncrepl replication mechanism is supported by the bdb, hdb AND MDB backends"
9.4.1 -> "Table ZZZ.ZZZ: Entity Specifiers"