Add developer environment guide (#76)

pkg/arvo/neo/cod/std/src/fil/developer-environment-setup.txt

@@ -0,0 +1,19 @@
+# Developer Environment Setup
+
+The quickest way to get set up to play with Shrubbery and Sky is to [boot a comet](https://docs.urbit.org/manual/getting-started/self-hosted/cli) and run `|install ~met %neo`. You could also [boot a moon](https://docs.urbit.org/manual/os/basics#moons) for this.
+
+When you boot your ship you should [use the `--loom 33` flag](https://docs.urbit.org/manual/running/vere#--loom-size), which allocates 8GB of memory on your machine for your ship. During Shrubbery development you could end up nuking and restarting the %neo agent many times, which will quickly use up the 2GB of memory ships are allocated by default. If/when your ship runs out of memory, just boot a new one and copy your work into that.
+
+If you want to work from the GitHub repo…
+- Clone [urbit/shrub](https://github.com/urbit/shrub) to your machine. (The `develop` branch is the latest stable build.)
+- [Boot a fakeship](https://docs.urbit.org/courses/environment#creating-a-fake-ship)
+- `> |new-desk %neo` on the fakeship
+- `> |mount %neo`
+- `$ rsync -avL path/to/pkg/shrub/* path/to/fakeship/neo`
+- `> |commit %neo`
+- `> |install our %neo`
+
+This will start the %neo agent which runs the Shrubbery prototype. Once that's finished booting, which will take a few minutes, go to `<localhost:port>/neo/sky` to access Sky.
+
+When you want to move changes from your local repo to the fakeship, repeat the `rsync -avL` command above. The %neo agent can do incremental builds and will make changes to your `/con` and `/imp` files as you'd expect, but if you make a change to a `/pro` file you'll have to `|nuke %neo` and `|revive %neo`.
+

pkg/arvo/neo/cod/std/src/imp/home.hoon

@@ -5,6 +5,7 @@
 /*  tasks
 /*  messenger
 /*  introduction
+/*  developer-environment-setup
 ^-  kook:neo
 |%
 ++  state  pro/%home
@@ -45,7 +46,8 @@
         [#/[p/our.bowl]/home/docs/tutorials/messenger %make %sail `sail/!>([messenger 'prose p-page mw-page ma' ~]) ~]
         [#/[p/our.bowl]/home/docs/tutorials/tasks %make %sail `sail/!>([tasks 'prose p-page mw-page ma' ~]) ~]
       ::
-        [#/[p/our.bowl]/home/docs/guides %make %folder `folder/!>([%feather ~]) ~]
+        [#/[p/our.bowl]/home/docs/guides %make %folder `folder/!>([%development %feather ~]) ~]
+        [#/[p/our.bowl]/home/docs/guides/development %make %sail `sail/!>([developer-environment-setup 'prose p-page mw-page ma' ~]) ~]
         [#/[p/our.bowl]/home/docs/guides/feather %make %sail `sail/!>([feather-intro 'prose p-page mw-page ma' ~]) ~]
     ==
   ++  poke