Reformatting, clarification, add reference tag
Reformatting, clarification, add reference tag

* Added reference tag to the top
* Added a couple clarifying links (probably unnecessary)
* Fixed one link that I broke (whoops!)
* Restructured some lists to make the steps clearer
pllim/ginga,naojsoft/ginga,ejeschke/ginga,naojsoft/ginga,naojsoft/ginga,pllim/ginga,ejeschke/ginga,pllim/ginga,ejeschke/ginga