Improve _config.yml

- Properly indent values
- Add missing comments

_config.yml

@@ -1,8 +1,12 @@
+# Meta data
 name:         Ratchet
 authors:      Connor Sears
 description:  Prototype mobile apps with simple HTML, CSS, and JS components.
 
+# Dependencies
 pygments:     true
+
+# Permalinks
 permalink:    pretty
 
 # Server