Add link to flagging instructions in "FAQ/Guidelines" asset post

The reader won't necessarily know what is meant by "flag", or how to do it. Adding a detailed explanation and
instructions to the post would have a harmful effect, but linking the mention of flagging to the documentation provided
by Discourse makes the information readily available to those readers who need it, while not impacting those who don't.

Author: per1234

content/categories/staff/_topics/faq-guidelines/1.md

@@ -45,7 +45,7 @@ Let’s leave our community better than we found it.
 
 Moderators have special authority; they are responsible for this forum. But so are you. With your help, moderators can be community facilitators, not just janitors or police.
 
-When you see bad behavior, don’t reply. It encourages the bad behavior by acknowledging it, consumes your energy, and wastes everyone’s time. _Just flag it_. If enough flags accrue, action will be taken, either automatically or by moderator intervention.
+When you see bad behavior, don’t reply. It encourages the bad behavior by acknowledging it, consumes your energy, and wastes everyone’s time. [_Just flag it_](https://meta.discourse.org/t/flag-a-post-for-moderator-attention/32783). If enough flags accrue, action will be taken, either automatically or by moderator intervention.
 
 In order to maintain our community, moderators reserve the right to remove any content and any user account for any reason at any time. Moderators do not preview new posts; the moderators and site operators take no responsibility for any content posted by the community.