add miniconda for windows recommendation and fixed some typo. (#1072)

* fix some format

* add Miniconda and fix typo

* update indents

README.md

@@ -129,7 +129,7 @@ python -m pip install --upgrade nni
 Note:
 
 * `--user` can be added if you want to install NNI in your home directory, which does not require any special privileges.
-* Currently NNI on Windows only support local mode. Anaconda is highly recommended to install NNI on Windows.
+* Currently NNI on Windows only support local mode. Anaconda or Miniconda is highly recommended to install NNI on Windows.
 * If there is any error like `Segmentation fault`, please refer to [FAQ](docs/en_US/FAQ.md)
 
 **Install through source code**

docs/en_US/Installation.md

@@ -25,22 +25,28 @@ Currently we support installation on Linux, Mac and Windows(local mode).
   You can also install NNI in a docker image. Please follow the instructions [here](https://github.com/Microsoft/nni/tree/master/deployment/docker/README.md) to build NNI docker image. The NNI docker image can also be retrieved from Docker Hub through the command `docker pull msranni/nni:latest`.
 
 ## **Installation on Windows** 
-  When you use powershell to run script for the first time, you need **run powershell as administrator** with this command:
+
+  When you use PowerShell to run script for the first time, you need **run PowerShell as administrator** with this command:
+
   ```bash
   Set-ExecutionPolicy -ExecutionPolicy Unrestricted
   ```
-  Anaconda is highly recommanded.
+
+  Anaconda or Miniconda is highly recommended.
 * __Install NNI through pip__
 
   Prerequisite: `python(64-bit) >= 3.5`
+
   ```bash
   python -m pip install --upgrade nni
   ```
 
 * __Install NNI through source code__
 
-  Prerequisite: `python >=3.5`, `git`, `powershell`    
-  you can install nni as administrator or current user as follows:
+  Prerequisite: `python >=3.5`, `git`, `PowerShell`.
+  
+  you can install NNI as administrator or current user as follows:
+
   ```bash
   git clone -b v0.7 https://github.com/Microsoft/nni.git
   cd nni

docs/en_US/WindowsLocalMode.md

@@ -4,7 +4,7 @@ Currently we only support local mode on Windows. Windows 10.1809 is well tested
 
 ## **Installation on Windows**
 
-  **Anaconda python(64-bit) is highly recommended.**  
+  **Anaconda or Miniconda python(64-bit) is highly recommended.**  
 
 When you use PowerShell to run script for the first time, you need **run PowerShell as administrator** with this command:
 
@@ -22,7 +22,7 @@ Set-ExecutionPolicy -ExecutionPolicy Unrestricted
 
 * __Install NNI through source code__
 
-  Prerequisite: `python >=3.5`, `git`, `powershell`
+  Prerequisite: `python >=3.5`, `git`, `PowerShell`
 
   ```bash
   git clone -b v0.7 https://github.com/Microsoft/nni.git
@@ -55,9 +55,9 @@ Set-ExecutionPolicy -ExecutionPolicy Unrestricted
 
 >...cannot be loaded because running scripts is disabled on this system.
 
-### Trial failed with missing DLL in cmd or PowerShell
+### Trial failed with missing DLL in command line or PowerShell
 
-This error caused by missing LIBIFCOREMD.DLL and LIBMMD.DLL and fail to install SciPy. Using anaconda python(64-bit) can solve it.
+This error caused by missing LIBIFCOREMD.DLL and LIBMMD.DLL and fail to install SciPy. Using Anaconda or Miniconda with Python(64-bit) can solve it.
 >ImportError: DLL load failed
 
 ### Trial failed on webUI
@@ -77,8 +77,7 @@ If there is a stderr file, please check out. Two possible cases are as follows:
 Make sure C++ 14.0 compiler installed then try to run `nnictl package install --name=BOHB` to install the dependencies.
 
 ### Not supported tuner on Windows
-SMAC is not supported currently, the specific reason can be referred to this [github issue](https://github.com/automl/SMAC3/issues/483).
-
+SMAC is not supported currently, the specific reason can be referred to this [GitHub issue](https://github.com/automl/SMAC3/issues/483).
 
 Note: