Added Boolean operators and lowered line lengths

Added Bool operators and and or, and lowered some line lengths.  Also shifted some notes above the code lines to keep with same style and help readability.  Also added a note on list comprehension.  Also added adding to dictionary.
Do you mind rewording this line? The `#` symbols are supposed to separate the line it seems but it is not that readable. Confusing to read. You can reword the line to be more of a sentence form, or have your description go over a couple lines to make it more readable.