[COLLECTIONS-857] update documentation

[Claudenw]

Fix for COLLECTIONS-857

Added MathJax to display math symbols.

Added markdown to site processing.
Created markdown booomFilters directory with multiple documentation files.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.50%. Comparing base (229425c) to head (8a0c0c5).
Report is 166 commits behind head on master.

Additional details and impacted files

@@             Coverage Diff              @@
##             master     #507      +/-   ##
============================================
- Coverage     81.60%   81.50%   -0.11%     
- Complexity     4745     4836      +91     
============================================
  Files           295      300       +5     
  Lines         13751    14092     +341     
  Branches       2022     2071      +49     
============================================
+ Hits          11222    11485     +263     
- Misses         1929     1994      +65     
- Partials        600      613      +13     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.