Doc update

README.md

@@ -491,6 +491,7 @@ cmd = { "/Users/username/.local/share/nvim/lsp_servers/python/node_modules/.bin/
 ```
 
 The lsp servers installed by nvim-lsp-installer is in following dir
+
 ```lua
 local path = require 'nvim-lsp-installer.path'
 local install_root_dir = path.concat {vim.fn.stdpath 'data', 'lsp_servers'}
@@ -500,7 +501,6 @@ local install_root_dir = path.concat {vim.fn.stdpath 'data', 'lsp_servers'}
 And you can setup binary full path to this: (e.g. with gopls)
 `install_root_dir .. '/go/gopls'`
 
-
 ## Usage
 
 Please refer to lua/navigator/lspclient/mapping.lua on key mappings. Should be able to work out-of-box.
@@ -536,9 +536,10 @@ You can override the above highlight to fit your current colorscheme
 
 ## commands
 
-| command      | function               |
-| ------------ | ---------------------- |
-| LspToggleFmt | toggle lsp auto format |
+| command      | function                  |
+| ------------ | ------------------------- |
+| LspToggleFmt | toggle lsp auto format    |
+| LspKeymaps   | show LSP releated keymaps |
 
 ## Screenshots