Refined wording, fixed typo, added cross-references
Refined wording, fixed typo, added cross-references

Changed "connection-like" to "connection-based" per reviewer's suggestion.
Fixed typo and improved wording of note about default deny in a tier.
Added a couple cross-references to the filtering outline.
Corrected positioning of anchor for security profiles.

neiljerram/felix,neiljerram/felix,Metaswitch/calico,neiljerram/felix,Metaswitch/calico,matthewdupre/felix,matthewdupre/felix,neiljerram/felix