add results section

appended at the end of report.tex
very prelimary writing
Merge pull request #6 from RobinZ16/master

add key results section
Merge branch 'master' of surim-arithmetic-dynamics/report
wrote notes for presetation 2

Mostly about quadratic periodic points of exact period 5 with c
rational.

* Recap;
* Preliminary;
* Brian's resultant.