LRDOCS-849 Wordsmithing

Hey Jim,

Just a minor question: I noticed that the header IDs for this chapter don't have the chapter number included in them. Did you do this because you weren't sure if the chapter number would stay at #8?

I noticed when updating some of the links, and didn't know if the links I added would be valid (if the header IDs are changing in the near future). Thanks!

https://issues.liferay.com/browse/LRDOCS-849