Update installation instructions

closes #1

README.md

@@ -6,7 +6,11 @@ A terminal interface for Tetris
 
 ## installation
 
-For Mac and Linux, the binaries attached to the GitHub release should suffice.
+For Mac and Linux, the binaries attached to the GitHub release should suffice ([instructions](#github-release-binaries)). For other Linux distros, you can try the Linux binary as well but no guarantees. See the other two options, installing from [source](#install-from-source) and [dex](#install-via-dex).
+
+I have not tested Windows, but I do think it should work via dex. Please let me know in an issue if it fails so I can update documentation. Thanks!
+
+#### github release binaries
 Here is a quick way to get the one for your OS:
 ```bash
 curl -L https://github.com/samtay/tetris/releases/download/0.1.0/tetris-`uname -s`-`uname -m` -o tetris
@@ -14,21 +18,38 @@ chmod +x tetris
 sudo mv tetris /usr/local/bin/
 ```
 
-For Windows, you have to install from source. First [get stack](https://docs.haskellstack.org/en/stable/README/#how-to-install). Then
+#### install from source
+First [get stack](https://docs.haskellstack.org/en/stable/README/#how-to-install). Then
 ```bash
 git clone https://github.com/samtay/tetris.git
 cd tetris
 stack install tetris
 ```
 
+#### install via dex
+[dex](https://github.com/dockerland/dex) is a really cool application manager that lets you run executables as docker images, so that you don't need to worry about installing them or their dependencies directly.
+```bash
+# get dex if you don't have it
+curl -L http://get.iceburg.net/dex/latest-0.12.x/dex -o dex
+chmod +x dex
+sudo mv dex /usr/local/bin
+
+# add tetris as a repo
+dex repo add tetris https://github.com/samtay/tetris.git
+
+# install globally (so that you dont need to run `dex run tetris`)
+dex install --global tetris
+
+# test it out
+tetris
+```
+
 ## screenshots
 
 #### Linux termite - tomorrow night eighties
 ![linux-tomorrow-night-80s](./docs/img/linux_tomorrow_night_80s.png)
 #### Mac terminal - plain
 ![mac-terminal-plain](./docs/img/mac_plain.png)
-#### Mac terminal - grass
-![mac-terminal-grass](./docs/img/mac_grass.png)
 
 ## todo