Add guidance on use of "this", "that", "these", "those" with a noun

[julian-cable]

Guidance to add:
Use "this", "that", "these", or "those" followed by a noun.

Original example 1:
"This causes SSH to lose the recorded identities of the remote systems."

Improvement example 1:
Option 1:
"This action causes SSH to lose the recorded identities of the remote systems."
Option 2:
"Consequently, SSH loses the recorded identities of the remote systems."

Original example 2:
"A site can use these to self-allocate a private routable IP address space inside the organization."

Improvement example 2:
"A site can use these unique local addresses to self-allocate a private routable IP address space inside the organization."

[julian-cable]

Added guidance and examples.