Convert to go mod

README.md

@@ -19,19 +19,19 @@ installed on your system:
 
 ```
 $ go version
-go version go1.10 linux/amd64
+go version go1.13 linux/amd64
 ```
 
 In addition, you'll also need the following packages installed, at least in
 Debian:
 
 ```
-apt-get install libx11-dev libxcursor-dev mesa-common-dev libxrandr-dev \
-  libxinerama-dev libgl1-mesa-dev libxi-dev
+# apt install libx11-dev libxcursor-dev mesa-common-dev libxrandr-dev \
+  libxinerama-dev libgl1-mesa-dev libxi-dev mpv
 ```
 
-Clone the source tree to `$GOPATH/src/ur.gs/ordoor`. You can then run
-`make all` to get the binaries that exist at present.
+You can then run `make all` in the source tree to get the binaries that are
+present at hte moment.
 
 They're not very interesting :D.
 
@@ -67,10 +67,17 @@ Looks like this:
 Use the arrow keys to scroll around the map, the mouse wheel to zoom, and the
 `1` - `7` keys to change Z level.
 
-Dependency management uses `govendor`. Unless you're contributing code you
-shouldn't have to worry about it.
+Dependency management uses `go mod`, so ensure you have at least Go 1.11.
 
-`dep` bug https://github.com/golang/dep/issues/1725 means I can't use it.
+There is the **start** of the menu / campaign flow in a `wh40k` binary:
+
+```
+$ make wh40k
+$ ./wh40k
+```
+
+This plays the introductory video so far, and nothing else. I'm hopeful I can
+render the main menu next.
 
 ## Miscellany