Update readme and license

Author: Bryce Cogswell

LICENSE.md

@@ -0,0 +1,15 @@
+## ISC License
+
+Copyright (c) 2018, Bryce Cogswell and Go Map!! Contributers.
+
+Permission to use, copy, modify, and/or distribute this software for any
+purpose with or without fee is hereby granted, provided that the above
+copyright notice and this permission notice appear in all copies.
+
+THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
+REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
+AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
+INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
+LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.

README.md

@@ -1,10 +1,13 @@
+
 # Go Map!!
 
 Go Map!! is an iPhone/iPad editor for adding cartographic information to [OpenStreetMap](www.openstreetmap.org).
 
+## Source code structure
 
-## Source
-
-The project began as a Mac desktop editor, but soon changed to an iPhone app, but with an eye toward working on both platforms. As a result the **src** directory contains subdirectories **iOS**, **Mac** and **Shared**. The Mac code is not maintained and probably won't build, but core code is written with an eye toward potentially supporting Mac again in the future. 
-
-
+* iOS - Code specific to the iOS app
+* Mac - Code specific to the Mac app (old, doesn't build anymore)
+* Shared - Shared code (drawing code, OSM data structures, etc)
+* Images - Images used for application elements (buttons, etc)
+* png/poi/Maki/iD SVG POI - Icons used for map elements (POIs, etc)
+* presets - The presets database copied from the iD editor