Add 2 New Rules for Math Block Spacing, Fix Issue with Docs Generation, and Setup Base for Moving Common Styles to General Settings

[pjkaufman]

Relates to #261
Relates to #440

Changes Made:

• Added a rule for making sure there are blank lines around math blocks
• Added a rule for making sure that the dollar signs starting and ending a math black are on their own lines
  • Added an edge case in the tests
• Added a general setting for the number of dollar signs to consider to be a math block indicator for single-line math sections
• Added a dummy mock of document for docs.js to make it run correctly for generating documentation
• Updated the gitignore to no longer deal with rollup as it was removed
• Added the base setup for common styles that will allow for refactoring several settings
• Added documentation for new rules