remove the option for graphicx.sty
center the figures
use hyperref package
split preamble from part1.tex
some style chages.

1. use \centering for figures.
2. splite preambles to preamble.tex.
3. use \url for urls.
Add part4 tables
Add part11 tables
Add part12, 15, 16, 20 tables
Merge pull request #5 from na4zagin3/work

デザイン上の修正他
Merge pull request #4 from hiroyuki-sato/patch-for-syuu1228

Part3 Table取り込みしました。
Add part4.tex
Notice skipping part13, 14
Update README.md
Update README.md
add part7 list1 and list2
Merge pull request #7 from d-aki/part7_list

add part7 list1 and list2
Modify parte3.tex design.
* Oversize tables fit to paper size.
* Centering table.
* Remove subsection No.
* change footnote style.
* Add caption in list no3.