“123269f607a7bdec9032abb7ebf7d567a9dd2139”上不存在“...doc_cn/getstarted/git@gitcode.net:RobotFutures/Paddle.git”
* Unify fluid submodules to fluid module Change books just use `import fluid`, not submodules * Remove g_main_program/g_startup_program Use default_main_program/default_startup_program instead * Typo * Fix CI