[zh] Synchronize with en version

Some lines are modified in chapter 4.
The modifications refer to the commit 39663b43.
(gitolite section reworked for gitolite v3)
Synchronize with de version
[de] Synchronize with En version
The Trying Statement
Add Current Example Figures
[en] Show the figures on GitHub
[zh-tw] Show the figures on GitHub
[zh] Show the figures on GitHub
[de] Show the figures on GitHub
[ar] Show the figures on GitHub
[az] Show the figures on GitHub
[be] Show the figures on GitHub
[ca] Show the figures on GitHub
[cs] Show the figures on GitHub
[eo] Show the figures on GitHub
[es] Show the figures on GitHub
[es-ni] Show the figures on GitHub
[fi] Show the figures on GitHub
[fr] Show the figures on GitHub
[hu] Show the figures on GitHub