chore(doc): improve docs

doc/coc.cnx

@@ -36,8 +36,8 @@
     已安装列表 				   |coc-list-lists|
 状态栏支持   		   		|coc-status|
   手动      	          		|coc-status-manual|
-  Airline 				|coc-status-airline|
-  Lightline  				|coc-stauts-lightline|
+  Airline 						|coc-status-airline|
+  Lightline  					|coc-stauts-lightline|
 常见问题				|coc-faq|
 更新日志				|coc-changelog|
 
@@ -120,7 +120,6 @@ coc.nvim 使用 coc-settings.json 文件进行配置，该文件格式与工作
 
 保留使用当前的 `completeopt` ：
 >
-
 	"suggest.keepCompleteopt": true,
 <
 	注意： 如果你的 completeopt 包含 menu 选项，自动补全将被关闭。

doc/coc.txt

@@ -83,9 +83,9 @@ And run: >
 
   :PlugInstall
 
-For other plugin managers, use code from release branch.
+For other plugin managers, use code from the release branch.
 
-Or use Vim's built in plugin ecosystem: >
+Or use Vim's built-in plugin ecosystem: >
 
   #!/bin/sh
   # for vim8
@@ -100,7 +100,7 @@ Or use Vim's built in plugin ecosystem: >
 ==============================================================================
 CONFIGURATION						*coc-configuration*
 
-Most of coc.nvim configuration is stored within `coc-settings` file that can
+Most of coc.nvim configuration is stored within `coc-settings.json` file that can
 be opened using `:CocConfig`. This will open either the global configuration
 file (located at `$HOME/.vim/coc-settings.json` or
 `$HOME/.config/nvim/coc-settings.json` by default) or the local configuration
@@ -114,7 +114,7 @@ the `coc-json` extension: `:CocInstall coc-json`.
 Check out https://github.com/neoclide/coc.nvim/wiki/Using-the-configuration-file
 for more details.
 
-Built in configurations:~
+Built-in configurations:~
 
 "http.proxy":~
 
@@ -2535,7 +2535,7 @@ A:	Yes, you can make coc send diagnostics to ale, just add >
 ------------------------------------------------------------------------------
 Q:	I want codeLens feature of LSP.
 
-A:	CodeLens support uses the virtual text feature of Neovim, its not
+A:	CodeLens support uses the virtual text feature of Neovim, it's not
 	enabled by default. To enable it, add: >
 
 	  "codeLens.enable": true,