Add config/config.yaml to set default configurations. Use the config/local_config.yaml to set the custom configurations Change-Id: I22049e478b6440c765751c8f17663f36f33c277a
Delete redundant article sections Change-Id: I2e51aeba37f3789ef2315b4a4d4f541ff81e947d
Add install and Update settings Change-Id: I54828dd738acd0f00c22c3c6a8b7a3ce5527272d