Docs: Update docker related references.

README.md

@@ -36,11 +36,9 @@ Apollo 5.0 is loaded with new modules and features but needs to be calibrated an
 **[Attention]** The Apollo team is proud to announce that the platform has been migrated to Ubuntu 18.04, one of the most requested upgrades from our developers. We do not expect a disruption to your current work with the Apollo platform, but for perception related code, you would need to:
 
 1. Upgrade host to ubuntu_16.04 and above (Ubuntu 18.04 is preferred)
-2. Update local host NVIDIA driver >=410.48. [Website link](https://www.nvidia.com/Download/index.aspx?lang=en-us).
-Other alternatives are also possible for this step
- 1-follow the [guide](https://github.com/ApolloAuto/apollo-kernel/tree/master/linux/Install_nvidia_driver_on_ubuntu_18.04.md) to install Apollo-Kernel and NVIDIA driver, if you want to install Apollo-Kernel.
- 2-use Ubuntu apt to install the Nvidia drivers [guide](https://www.linuxbabe.com/ubuntu/install-nvidia-driver-ubuntu-18-04) however even if more convenient this way is new and only works for LTS veesions (16.04 and 18.04) sonprocced with caution.
-3. Install NVIDIA-docker 2.0 - you can refer to [this link](https://github.com/nvidia/nvidia-docker/wiki/Installation-(version-2.0)) for steps on installation, or use the install scripts we provide [here](https://github.com/ApolloAuto/apollo/blob/master/docker/setup_host/install_nvidia_docker.sh)  
+2. Update local host NVIDIA driver >=410.48. [Website link](https://www.nvidia.com/Download/index.aspx?lang=en-us). Or follow the [guide](https://github.com/ApolloAuto/apollo-kernel/tree/master/linux/Install_nvidia_driver_on_ubuntu_18.04.md) to install Apollo-Kernel and NVIDIA driver, if you want to install Apollo-Kernel.
+3. Install latest Docker-CE (19.03+) by following the [official doc](https://docs.docker.com/install/linux/docker-ce/ubuntu).
+4. Install latest nvidia-container-toolkit by following the [official doc](https://github.com/NVIDIA/nvidia-docker).
 
 For those developers that would like to continue working with Ubuntu 14.04, please use the [Ubuntu 14.04 branch](https://github.com/ApolloAuto/apollo/tree/ubuntu_14.04) instead of the master branch.
 

docs/demo_guide/README.md

@@ -3,7 +3,8 @@
 Apollo provides a method to run simulation if you do not have the required
 hardware.
 
-First fork and then clone Apollo's GitHub code and then set up the docker release environment by following the instructions in the
+First fork and then clone Apollo's GitHub code and then set up the docker
+release environment by following the instructions in the
 [Install docker](https://github.com/ApolloAuto/apollo/blob/master/docs/howto/how_to_build_and_release.md#docker)
 section of the
 [Build and Release](https://github.com/ApolloAuto/apollo/blob/master/docs/howto/how_to_build_and_release.md)

docs/howto/how_to_build_and_release.md

@@ -8,12 +8,8 @@
 * [6. Legal Disclaimer](#legal-disclaimer)
 
 ## Install Docker
-The system requirement for building Apollo is Ubuntu 14.04. Using a Docker container is the simplest way to set up the build environment for Apollo project. A Detailed docker tutorial can be found [here](https://docs.docker.com/).
 
-To install docker, you may refer to
-[Official guide to install the Docker-ce](https://docs.docker.com/install/linux/docker-ce/ubuntu).
-Don't forget to test it using
-[post-installation steps for Linux](https://docs.docker.com/install/linux/linux-postinstall).
+Please follow the [Apollo Software Installation Guide](https://github.com/ApolloAuto/apollo/blob/master/docs/quickstart/apollo_software_installation_guide.md#Set-up-the-Docker-environment).
 
 ## Build Apollo