Improve README and Makefile

Makefile

@@ -1,2 +1,11 @@
+.PHONY: live build setup
+
+live:
+	bundle exec nanoc live
+
 build:
-	nanoc
+	bundle exec nanoc
+
+setup:
+	which bundle || { { gem install bundler && which bundle; } || echo 'Could not find `bundle`.'" Make sure the directory with the Ruby's gem executables is in your PATH. (Typically ~/.gem/ruby/*/bin)" && false; }
+	bundle install

README.md

@@ -3,22 +3,24 @@ Durf Doen 2.0
 
 ## Setup instructions
 
-1. Install bundler (`gem install bundler`)
-2. Install other gems (`bundle install`)
-3. Build and serve the site (`bundle exec nanoc live`)
+1. Install Ruby, preferably the version specified in `.ruby-version`
+2. Install bundler (`gem install bundler`)
+3. Install other dependencies (`bundle install`)
+4. Build and serve the site (`bundle exec nanoc live`)
+
+To build the artefacts for production: `bundle exec nanoc`
 
 ### Setup on windows
 
-This is very flacky, but it might help to 
-- Ofcourse only install ruby 2.6
-- change `gem 'mini_racer'` to `gem 'mini_racer', platforms: :ruby` in Gemfile
-- following this github page https://github.com/eakmotion/therubyracer_for_windows
-- Edit this file `C:\Ruby26-x64\lib\ruby\gems\2.6.0\gems\eventmachine-1.2.7-x64-mingw32\lib` by adding `require 'em pure_ruby'` and a newline to the top of the file.
+This is very flaky, but it might help to
+- Of course only install Ruby 2.6
+- Change `gem 'mini_racer'` to `gem 'mini_racer', platforms: :ruby` in Gemfile
+- Follow this GitHub page https://github.com/eakmotion/therubyracer_for_windows
+- Edit this file `C:\Ruby26-x64\lib\ruby\gems\2.6.0\gems\eventmachine-1.2.7-x64-mingw32\lib`, adding `require 'em pure_ruby'` and a newline to the top of the file
 - After all this, on my machine, it still throws an exception, but the live reloading works, until it doesn't (most of the time after a failed compile)
 
+### Optional setup via Docker
 
-### Optional setup via docker
-
-You can run the code in a separated docker environment. It compiles the code and serves the files via nginx.
+You can run the code in a separated Docker environment. It compiles the code and serves the files via nginx.
 
     docker build --tag durfdoen2 . && docker run --publish 8080:80 --detach --name dd durfdoen2