update readme

Makefile

@@ -2,7 +2,7 @@ ZIP      := zip -x \*.tmx \*.xcf
 LOVE     := love
 
 NAME     := ds_alpha
-VERSION  := 0.0.1
+VERSION  := 0.0.0
 
 CURRENTDIR := $(realpath .)
 SRCDIR   := src

README.md

@@ -13,7 +13,10 @@ In the meantime take a moment to listen to the music of *Die Streuner*:
 
 ![Screenshot](screenshot.png)
 
-# Prerequisites
+Use arrow keys for movement and enter to get rid of dialogs (for movement w, a, s, d & h, j, k, l works too).
+
+# Local Building
+## Prerequisites
 - [Löve](https://love2d.org/)
 - [Tiled](http://www.mapeditor.org/) (if you want to edit levels)
 - [GIMP](http://www.gimp.org/) (if you want to edit character sprites)
@@ -25,12 +28,21 @@ In the meantime take a moment to listen to the music of *Die Streuner*:
     - awk
     - ps
 
-# Usage
+## Usage
 ```
 make run
 ```
 
-Use arrow keys for movement and enter to get rid of dialogs (for movement w, a, s, d & h, j, k, l works too).
+# Docker Building
+## Prerequisites
+- [Docker](https://www.docker.com/)
+
+## Usage
+```
+make docker
+```
+
+Or you can look up the exact command in the [Makefile](Makefile)
 
 # Licensation
 All original code is licensed under the [MPL 2.0](https://www.mozilla.org/MPL/2.0/index.txt).