docs/guide-ja/README.md - revised using "初期設定" and "設定情報" for "configuration(s)" [ci skip]
docs/guide-ja/intro-yii.md - revised avoiding ":" in the translation [ci skip]
docs/guide-ja/intro-upgrade-from-v1.md - revised using "初期設定" and "設定情報" for "configuration(s)" [ci skip]
docs/guide-ja/images - "config" => "構成" [ci skip]
docs/guide-ja/README.md - "config" => "構成" [ci skip]
docs/guide-ja/intro-upgrade-from-v1.md - "config" => "構成" [ci skip]
docs/guide-ja/intro-upgrade-from-v1.md - updated [ci skip]
Merge pull request #6292 from softark/docs-guide-ja-intro-revised

Docs guide ja intro revised　[ci skip]