Added the original lecture notes.
Updated README.
Changed inclusion of graphics.

Changed from the outdated `\psfig` to the better option
`\includegrahpics`.
Added a main file for combining the different chapters.
Minor change.
Changed method of figure inclusion.
Experiencing weird error when compiling.
Found source of compiling error.

The error arose due to inclusion of the package 'graphics' instead of
'graphicx'.
Forgot to remove begin and end document.
Forgot to remove begin and end document.
Commented out the preamble to prepare for merge into main.
Added preamble for lectures 1-3.
Prepared Chapter 4 for merge into main.

Added numbering on sections for the table of contents that will follow
in the main file. Removed (commented) the preamble and transferred the
unique parts into main.tex.
TODO: Move all exercises to the end of the chapter instead of having
exercises after each subsection.
Prepared Chapter 5 for merge into main.

Changed a few figure inclusions from \psfig to \includegraphics. Also
added numbering on the sections.
Added preambles from Chapter 4 and 5.
Prepared to merge into main.

Changed some instances of the use of \psfig to \includegraphics.
TODO: Fix some of the tables for aesthetics.
TODO: Move exercises to the end of the chapter, and fix them up so that
the layout looks better.
Added preamble from Chapter 6 (nothing new).
Added sublist on some goals.
Replaced dots with spaces for sublist.
Minor change.