Adding link to draft of pattern-system.md in the 'Pattern Meta Info' block. Including a disclaimer that this is a draft, as suggested by @maxcapraro

Author: spier

README.md

@@ -88,6 +88,7 @@ The topics below cover information about how we define, operate, and upkeep this
 
 * [Pattern Template](meta/pattern-template.md) - Start a new pattern with a copy of this
 * [Pattern States](meta/pattern-states.md) - Definitions of the various states and review steps a pattern can be in
+* [Pattern System](pattern-system.md) (draft) For a human reader it is not easy to digest a long list of patterns. We are working on labeling and classifying the patterns further. See [Pattern System](pattern-system.md) for our current thoughts.
 * [Trusted Committers](meta/trusted-committers.md) - Who these people are, what elevated rights they get, and how you can become one
 * [Publishing](meta/publishing.md) - How we take completed, reviewed, proven patterns and publish them toward an online book
 * [Markdown Info](meta/markdown-info.md) - Markdown is the ascii text format our patterns are written in; this document briefly defines how we use it