Documentation: Change format for multiple modules

- Changed the documentation format for following modules:
    - Multilogistic Regression
    - Summary
    - Correlation
    - Cox Proportional Hazards
Documentation: Add note about table names and other corrections

- Updated description file to remove "Beta" statement
- Added a note about table and column names requiring double quoting
if name is case-sensitive or contains multibyte characters.
- Changed all the argument types to be succint.
- Made significant updates to the Linear System documentation to
correct many errors.