Modify read me and correct settings

README.md

@@ -1,7 +1,11 @@
-minetest_doc
+Minetest Doc
 ============
 
 Minetest Tutorials
 
+Edit site in _config.yml to point to root url.
+If using jekyll serve, then http://localhost:4000
 
-Don't fork or clone, I am going to rebase all these commits into "Initial Commit"
+```
+$ jekyll serve
+```

_config.yml

@@ -3,4 +3,4 @@ description: Simple and easy to understand tutorial book
 author: rubenwardy and contributors
 permalink: pretty
 absolute_url: http://rubenwardy.github.io/minetest_doc
-url: http://localhost:4000/minetest_doc
+url: /minetest_doc