[ja] Update chapter 1

This change is follow up of #851.
Update 01-chapter9.markdown

Oprava nechcete ignorovat → chcete ignorovat (soubory z .gitignore).
Merge pull request #855 from okuryu/update-ja-chapter1

[ja] Update chapter 1
Merge pull request #856 from ginzel/patch-1

Update 01-chapter9.markdown
[zh] Update chapter 3, fixed one spelling
Update link and name to Plans and pricing page
Merge pull request #859 from randomecho/ch4-plans-pricing-link

Update link and name to Plans and pricing page
Merge pull request #858 from cheyiliu/master

[zh] Update chapter 3, fixed one spelling
Fix BFG capability
Merge pull request #862 from conkiztador/patch-1

Fix BFG capability
Install git instead of git-core with MacPorts

`sudo port install git +svn +doc +bash_completion +gitweb` succeeds, whereas `sudo port install git-core +svn +doc +bash_completion +gitweb` fails with output that includes the following helpful messages:
Error: git-core has been made obsolete by the port git. Please install git instead.
Error: org.macports.configure for port git-core returned: obsolete port
Please see the log file for port git-core for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_git-core/git-core/main.log
Error: Processing of port git-core failed
Merge pull request #863 from sampablokuper/patch-1

Install git instead of git-core with MacPorts
Updating macports git package name

git-core has been made obsolete by the port git