[doc-es][mailing-lists.adoc] Sync with master

mailing-lists.adoc was outdated compared to master. Catch up with master
instead of adding pieces one at a time.

• Sync with master, deleting elements not in the original and adding the missing ones.
• Use the same order to make checking and updating easier.
• Capitalize the first letter always as in the master doc.
• Leave es specific items at the bottom.

Reviewed by: carlavilla@, jlduran_gmail.com
Approved by: docs@ (carlavilla@)
Differential Revision: https://reviews.freebsd.org/D36881