Refactor the README (#1174)

* refactor doc

* update with Mao's suggestions

* Set theme jekyll-theme-dinky

* update doc

* fix links

* fix links

* fix links

* merge

* fix links and doc errors

* merge

* merge

* merge

* merge

* Quick fix nnictl config logic (#289)

* fix nnictl bug

* fix install.sh

* add desc for Dockerfile.build.base

* update document for Dockerfile

* update

* refactor port detect

* update

* refactor NNICTLDOC.md

* add document for pai and nnictl

* add default value for port

* add exception handling in trial_keeper.py

* fix port bug

* fix resume

* fix nnictl resume and fix nnictl stop

* fix document

* update

* refactor nnictl

* update

* update doc

* update

* update nnictl

* fix comment

* revert dockerfile

* update

* update

* update

* fix nnictl error hit

* fix comments

* fix bash-completion

* fix paramiko install

* quick fix resume logic

* update

* quick fix nnictl

* merge

* updated the "Contribute" part (merged Gems' wiki in, updated ReadMe)

* fix link

* revise the installation cmd to v0.2

* revise to install v0.2

* Update nnictl_utils.py

* Update nnictl_utils.py

* Update nnictl_utils.py

* Update documentation for v0.3

* update release note

* update v0.3.0 release note +1

* update doc for installation tag v0.3.3

* fix contributing doc problems

* update doc for "write trial"

* fix link

* issue 414

* update arch overview diagram in README

* update image

* fix broken link

* correct typo

* Adding related projects to Readme

* refact Readme

README.md

@@ -106,12 +106,6 @@ We encourage researchers and students leverage these projects to accelerate the
 
 ## **Install & Verify**
 
-If you are using NNI on Windows and use PowerShell to run script for the first time, you need to **run PowerShell as administrator** with this command first:
-
-```bash
-    Set-ExecutionPolicy -ExecutionPolicy Unrestricted
-```
-
 **Install through pip** 	
 
 * We support Linux, MacOS and Windows(local, remote and pai mode) in current stage, Ubuntu 16.04 or higher, MacOS 10.14.1 along with Windows 10.1809 are tested and supported. Simply run the following `pip install` in an environment that has `python >= 3.5`.
@@ -124,6 +118,12 @@ python3 -m pip install --upgrade nni
 
 Windows
 
+**IMPORTANT** Make sure `ExecutionPolicy` has been set to `Unrestricted` before installation. To set the policy, **run PowerShell as administrator** with the following command:
+
+```bash
+Set-ExecutionPolicy -ExecutionPolicy Unrestricted
+```
+Once ExecutionPolicy is unrestricted, run the following command to install NNI:
 ```bash
 python -m pip install --upgrade nni
 ```