Add section on growth by splitting & reorganize docs TOC

growth.md

@@ -0,0 +1,5 @@
+# Growing Agaric
+
+As a mushroom, Agaric has several options for growth.  We don't want to become [the largest organism on the planet](https://www.scientificamerican.com/article/strange-but-true-largest-organism-is-fungus/) so our approach is [mitosis](https://www.sciencedirect.com/science/article/abs/pii/S0074769608600790)— dividing.
+
+If or when Agaric grows to more than about a dozen worker-owners, we plan to split into two equal groups, opearting under the banner of Agaric and sharing resources, but federating as small worker cooperatives rather than changing our basic internal structure to scale.

index.md

@@ -56,32 +56,42 @@ tools/drutopia-member-server-access
 
 ```{toctree}
 ---
-caption: Agaric.coop
+caption: Writing for Agaric
 maxdepth: 2
 ---
 
+content-style-guide
 agaric-website/basics
 agaric-website/agaric-site-content-entry
 agaric-website/tags-and-taxonomy-terms
 agaric-website/translation
 agaric-website/short-urls
+marketing
 ```
 
 
 ```{toctree}
 ---
-caption: Important other topics
+caption: How We Work
 maxdepth: 2
 ---
 
-content-style-guide
-marketing
 decision-making
-reference-docs
+growth
+```
+
+```{toctree}
+---
+caption: Documentation
+maxdepth: 2
+---
+
 documentation
 shared-technical-notes
+reference-docs
 ```
 
+
 ---
 
 If you've found your here way to Agaric's internal documentation but don't know about the [Agaric technology collective](https://agaric.coop/) itself yet, please check out our [development and consulting services](https://agaric.coop/services), [our trainings](https://agaric.coop/training), and [our initiatives](https://agaric.coop/initiatives) or read [about Agaric](https://agaric.coop/about-agaric) and [ask us for help or collaboration](https://agaric.coop/ask).