Fix formatting in dkd-deploy-core section, increase readability and remove unecessary files

Author: KieranHayes

_config.yml

@@ -10,7 +10,7 @@ title: dkdeploy documentation
 email: opensource@dkd.de
 description: dkdeploy documentation
 baseurl: "" # the subpath of your site, e.g. /blog
-url: "https://dkdeploy.github.io" # the base hostname & protocol for your site
+url: "http://localhost:4000/" # the base hostname & protocol for your site
 twitter_username: dkd_de
 github_username:  dkdeploy
 exclude: [foundation, vendor]