Update README to reflect name, add MIT licensing

LICENSE

@@ -0,0 +1,18 @@
+Copyright 2018 Nicholas Thomas <ordoor@ur.gs>
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
+the Software, and to permit persons to whom the Software is furnished to do so,
+subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
+FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
+COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

README.md

@@ -1,22 +1,17 @@
-# WH40K: Chaos Gate
+# Ordoor
 
-Re-implementation of the WH40K binary.
+Portmanteau of Order Door, a remake project for Warhammer 40,000: Chaos Gate,
+the game from 1998.
 
 **You must have a copy of the original game data to use this project**
 
-WH40K.exe is the existing game engine
-
-WH40K_TD.exe is the map editor. Allows things to be saved as .MAP or as .SMF
-("Super Macro File")
-
-This README is a grab-bag of miscellaneous information about file formats at
-present. This is being migrated to the [Formats overview](doc/formats/index.md)
-as a precursor to making this file useful!
-
 No game yet, nothing even close. I'm in the very early stages of trying to
 understand the various file formats. Until then, you can play WH40K: Chaos Gate
 in a WinXP VM, disconnected from the internet. It doesn't need 3D rendering!
 
+WH40K.exe is the existing game engine, and WH40K_TD.exe is the map editor.
+Allows things to be saved as .MAP or as .SMF ("Super Macro File").
+
 ## Building from source
 
 I'm writing code in Go at the moment, so you'll need to have a Go runtime
@@ -28,19 +23,35 @@ go version go1.10 linux/amd64
 ```
 
 Clone the source tree to `$GOPATH/src/ur.gs/chaos-gate`. You can then run
-`make loader` or `make view-map` to get the two binaries that exist at present.
+`make all` to get the binaries that exist at present.
 
 They're not very interesting :D.
 
 Place your WH40K: Chaos Gate installation in `./orig` to benefit from automatic
 path defaults. Otherwise, point to it with `-game-path`
 
+The `view-map` binary attempts to render a map, and is the current focus of
+effort. Once I can render a whole map, including pre-placed characters (cultist
+scum), things can start to get more interesting.
+
+To run:
+
+```
+$ make view-map
+$ ./view-map -map orig/Maps/Chapter01.MAP -text orig/Maps/Chapter01.TXT
+```
+
+Use the arrow keys to scroll around the map, the mouse wheel to zoom, and the
+`1` - `7` keys to change Z level.
+
+Unlike the game, currently I only render the Z level you're actually on.
+
 Dependency management uses `govendor`. Unless you're contributing code you
 shouldn't have to worry about it.
 
 `dep` bug https://github.com/golang/dep/issues/1725 means I can't use it.
 
-## Unmigrated text
+## Miscellany
 
 "Mission Setup" includes information about available squad types