Update python doc (#4154)

autoload/SpaceVim/layers/lang/python.vim

@@ -20,7 +20,7 @@ if exists('s:enabled_linters')
   finish
 endif
 
-let s:enabled_linters = ['python', 'flake8']
+let s:enabled_linters = ['python']
 let s:format_on_save = 0
 let s:python_file_head = [
       \ '#!/usr/bin/env python',

docs/cn/layers/lang/python.md

@@ -108,6 +108,8 @@ pip install --user coverage
 
 ## 模块设置
 
+- `python_file_head`: 设置默认的 Python 文件头信息模板。
+
   默认情况下，当新建一个空白 python 文件时，会自动添加文件头，如果需要修改默认的文件头样式，
   可以通过设置 `python_file_head` 选项：
 
@@ -130,6 +132,30 @@ pip install --user coverage
   enable_typeinfo = true
 ```
 
+- `format_on_save`: 启用或者禁用文件保存时的自动格式化，默认为禁用状态，
+  若想启用这一功能，可以使用如下配置：
+  ```toml
+  [[layers]]
+      name = 'lang#python'
+      format_on_save = true
+  ```
+
+- `python_interpreter`: 设置 python 的可执行命令路劲，默认值为 `python3`，该选项的值将被应用于
+  `g:neomake_python_python_exe` 和代码快速运行器。
+  ```toml
+  [[layers]]
+      name = 'lang#python'
+      python_interpreter = 'D:\scoop\shims\python.exe'
+  ```
+
+- `python_linters`: 设置 python 语言默认的语法检查工具，默认是 `['python']`，你也可以修改该选项为
+  `['python', 'pylint']`。
+  ```toml
+  [[layers]]
+    name = 'lang#python'
+    enabled_linters = ['python', 'pylint']
+  ```
+
 ## 快捷键
 
 ### 跳至定义处

docs/layers/lang/python.md

@@ -134,7 +134,7 @@ you need to add following snippet into your spacevim configuration file.
       format_on_save = true
   ```
 
-* `python_interpreter`: Set the python interpreter, by default, it is `python3`. The value of this option will
+- `python_interpreter`: Set the python interpreter, by default, it is `python3`. The value of this option will
   be apply to `g:neomake_python_python_exe` and code runner.
   ```toml
   [[layers]]
@@ -142,6 +142,14 @@ you need to add following snippet into your spacevim configuration file.
       python_interpreter = 'D:\scoop\shims\python.exe'
   ```
 
+- `python_linters`: Set the default linters for python language, by default it is `['python']`. You can change
+  it to `['python', 'pylint']`.
+  ```toml
+  [[layers]]
+    name = 'lang#python'
+    enabled_linters = ['python', 'pylint']
+  ```
+
 ## Key bindings
 
 ### Jump to definition