Split readme into files for scripts, plugins, and base

The plugin docs are still a mess, but the base and scripts are now close
to manageable.

README.rst

@@ -1,12 +1,43 @@
 Welcome to DFHack's documentation!
 ==================================
 
+Introduction
+============
+DFHack is a Dwarf Fortress memory access library, distributed with scripts
+and plugins implementing a wide variety of useful functions and tools.
+
+For users, it provides a significant suite of bugfixes and interface
+enhancements by default, and more can be enabled.  There are also many tools
+(such as ``workflow`` or ``autodump``) which can make life easier.  You can
+even add third-party scripts and plugins to do almost anything!
+
+For modders, DFHack makes many things possible.  Custom reactions, new
+interactions, magic creature abilities, and more can be set through scripts
+and custom raws.  Non-standard DFHack scripts and inits can be stored in the
+raw directory, making raws or saves fully self-contained for distribution -
+or for coexistence in a single DF install, even with incompatible components.
+
+For developers, DFHack unites the various ways tools access DF memory and
+allows easier development of new tools.  As an open-source project under
+various copyleft licences, contributions are welcome.
+
+
+Documentation
+=============
+DFHack documentation is generated by Sphinx.  Check out the table of contents
+below, or the sources in the docs folder!
+
+TODO: make this work on Github!
+
+
 Contents for users:
 
 .. toctree::
    :maxdepth: 2
 
    docs/Readme
+   docs/Plugins
+   docs/Scripts
 
 Contents for developers:
 

docs/Authors.rst

@@ -1,8 +1,9 @@
-Contributors
-============
-If you belong here and are missing, please add yourself and send me (peterix) a pull request :-)
+List of Authors
+===============
+The following is a list of people who have contributed to **DFHack**, in no
+particular order.
 
-The following is a list of people who have contributed to **DFHack**.
+If you should be here and aren't, please get in touch or make a pull request!
 
 ======================= ====================    ===========================
 Name                    Github                  Email
@@ -82,22 +83,7 @@ Wes Malone              wesQ3
 Michon van Dooren       MaienM
 Seth Woodworth          sethwoodworth
 Vjek
-======================= ====================    ===========================
-
-And these are the cool people who made **Stonesense**.
-
-======================= ====================    ===========================
-Name                    Github                  Email
-======================= ====================    ===========================
 Kris Parker             kaypy
-Japa                    JapaMala                japa.mala.illo@gmail.com
 Jonas Ask                                       jonask84@gmail.com
-Petr Mrázek             peterix                 peterix@gmail.com>
-Caldfir                 caldfir                 aitken.tim@gmail.com
 8Z                      8Z                      git8z@ya.ru
-Alexander Gavrilov      angavrilov              angavrilov@gmail.com
-Timothy Collett         danaris                 tcollett+github@topazgryphon.org
-Lethosor                lethosor
-Eswald                  eswald
-PeridexisErrant         PeridexisErrant         PeridexisErrant@gmail.com
 ======================= ====================    ===========================