Update README.md

int f();
sizeof f()==4;
etc..
Merge pull request #35 from shbling/patch-1

fix 4.30 README.md
fixed bugs of ex6_27 and ex6_28
Merge pull request #36 from pezy/upstream

fixed bugs of ex6_27 and ex6_28
Thx @Mr.M for reporting.
	new file:   ex41_01.cpp
	deleted:    ch41/ex41_01.cpp
Update README.md
fixed confilcts