diff --git a/README.md b/README.md
index 59c4345..5f35660 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,6 @@
# Vim Vixen
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-
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@@ -11,279 +10,9 @@ keyboard. Since version 57, Firefox has migrated to the WebExtensions API and
has dropped support for legacy add-ons. Vim Vixen is a new choice for Vim users
since it uses the WebExtensions API.
-## Basic usage
-
-### Keymaps
-
-Keymaps are configurable in the add-on's preferences by navigating to `about:addons` and selecting "Extensions".
-The default mappings are as follows:
-
-#### Console
-
-- :: open the console
-- o, t, w: open a page in the current tab, a new tab, or new window
-- O, T, W: similar to o, t, w, but using the current URL
-- b: select tabs by URL or title
-- a: add the current page to your bookmarks
-
-See the [console commands](#console-commands) section for a more detailed description.
-
-#### Tabs
-
-- d: delete the current tab and select the tab to its right
-- D: delete the current tab and select the tab to its left
-- !d: delete a pinned tab
-- u: reopen a close tab
-- r: reload the current tab
-- R: reload the current tab, bypassing the cache
-- K or gT: select the previous tab
-- J or gt: select the next tab
-- g0: select the first tab
-- g$: select the last tab
-- Ctrl+6: open the previously-selected tab
-- zp: pin the curent tab tab
-- zd: duplicate the current tab
-
-#### Scrolling
-
-- k: scroll up
-- j: scroll down
-- h: scroll left
-- l: scroll right
-- Ctrl+U: scroll up half a page
-- Ctrl+D: scroll down half a page
-- Ctrl+B: scroll up a page
-- Ctrl+F: scroll down a page
-- gg: scroll to the top of a page
-- G: scroll to the bottom of a page
-- 0: scroll to the leftmost part of a page
-- $: scroll to the rightmost part of a page
-- m: set a mark for the current position
-- ': jump to a marked position
-
-Lowercase marks (`[a-z]`) store the position of the current tab. Uppercase and
-numeric marks (`[A-Z0-9]`) store the position and the tab.
-
-#### Zoom
-
-- zi: zoom in
-- zo: zoom out
-- zz: zoom neutral (reset)
-
-#### Navigation
-
-- f: follow links in the page in the current tab
-- F: follow links in the page in a new tab
-- H: go back in history
-- L: go forward in history
-- [[, ]]: find a link to the previous/next page and open it
-- gu: go to the parent directory
-- gU: go to the root directory
-- gi: focus the first input field
-
-Vim Vixen can be configured to follow links opened in tabs in the background
-instead of switching to a new tab immediately. To do this, you'll need to update
-the config file: change the `"background"` property of the `"follow.start"`
-action to `true`, e.g.:
-
-```json
-{
- "keymaps": {
- "F": { "type": "follow.start", "newTab": true, "background": true }
- }
-}
-```
-
-#### Misc
-
-- y: copy the URL of the current tab to the clipboard
-- p: open the clipboard's URL in the current tab
-- P: open the clipboard's URL in new tab
-- Shift+Esc: enable or disable the add-on in the current tab
-- /: start searching for text in the page
-- n: find the next search result in the page
-- N: find the previous search result in the page
-- gf: view the source of the current tab
-
-### Console commands
-
-Vim Vixen provides a console for `ex`-style commands, similar to Vimperator.
-
-Open the console with :. Or populate it with initial values using
-o/O, t/T, or
-w/W.
-
-#### `:open`
-
-The `:open` command operates two different ways, depending on the parameter.
-When the parameter is a URL, it's opened in the current tab.
-
-```
-:open http://github.com/ueokande
-```
-
-Otherwise, the current tab opens a search page with the supplied string (defaults to Google).
-
-```
-:open How to contribute to Vim-Vixen
-```
-
-To use a search engine other than the default, specify the search engine to use as the first parameter.
-
-```
-:open yahoo How to contribute to Vim-Vixen
-```
-
-To adjust the default search-engine and add/remove search engines, see the [search engines](#search-engines) section.
-
-#### `:tabopen`
-
-Open a URL or search-engine query in a new tab.
-
-#### `:quit` or `:q`
-
-Close the current tab.
-
-#### `:quitall` or `:qa`
-
-Close all tabs.
-
-#### `:bdelete`
-
-Close a certain tab.
-
-You can add `!` to the end of the command to close a tab even if it is pinned:
+To get Vim Vixen, install it from [Firefox add-ons][AMO].
-```
-:bdelete!
-```
-
-#### `:bdeletes`
-
-Close tabs matching the specified keywords.
-
-You can add `!` to the end of the command to close pinned tabs:
-
-```
-:bdeletes!
-```
-
-#### `:winopen`
-
-Open a URL or search-engine query in a new window.
-
-#### `:buffer`
-
-Select tabs by URL or title keywords.
-
-#### `:addbookmark`
-
-Create a bookmark from the current URL.
-
-```
-:addbookmark My bookmark title
-```
-
-The keymap a is a convenient way to create a bookmark for the
-current page. It populates the console with `:addbookmark` and the title of
-the current page.
-
-#### `:set`
-
-The `:set` command can be used to temporarily override properties in the
-console. See the [properties](#properties) section for more details on
-the available properties.
-
-### Properties
-
-Vim Vixen can be configured by defining settings in a JSON document, e.g.:
-
-```json
-{
- "properties": {
- "complete": "sbh"
- }
-}
-```
-
-Properties can be temporarily overridden by using the `:set` command in the
-console.
-
-The following properties are available:
-
-#### `smoothscroll`
-
-Enable/disable smooth scrolling.
-
-```
-:set smoothscroll " enable smooth scrolling
-:set nosmoothscroll " disable smooth scrolling
-```
-
-#### `hintchars`
-
-Set hint characters.
-
-```
-:set hintchars=0123456789
-```
-
-#### `complete`
-
-Set completion items on `open`, `tabopen`, and `winopen` commands.
-The allowed value is character sequence of `s`, `b`, or `h`.
-Hit Tab or Shift+Tab to select an item from the completion list.
-Each character represents the following:
-
-- `s`: search engines
-- `b`: bookmark items
-- `h`: history items.
-
-```
-:set complete=sbh
-```
-
-### Search engines
-
-Vim Vixen supports searching with search engines such as Google and Yahoo.
-
-You can configure search engines, including the default search engine, in the add-on's preferences.
-The URLs specified in `"engines"` must contain a `{}`-placeholder, which will be
-replaced with the search keyword parameters of the command.
-
-```json
-{
- "search": {
- "default": "google",
- "engines": {
- "google": "https://google.com/search?q={}",
- "yahoo": "https://search.yahoo.com/search?p={}",
- "bing": "https://www.bing.com/search?q={}",
- "duckduckgo": "https://duckduckgo.com/?q={}",
- "twitter": "https://twitter.com/search?q={}",
- "wikipedia": "https://en.wikipedia.org/w/index.php?search={}"
- }
- }
-}
-```
-
-### Blacklist
-
-The blacklist allows you to disable the plugin for certain pages by URL patterns.
-For instance, you could use `"*.slack.com"` to disable the plugin on all Slack channels.
-In addition, you can also specify path patterns, such as `"example.com/mail/*"`.
-
-```json
-{
- "blacklist": [
- "*.slack.com",
- "example.com/mail/*"
- ]
-}
-```
-
-You can toggle Vim Vixen between disabled and enabled with
-shift+Esc.
+For usage and more detailed information, check out our [documentations][documentations].
## Compatibility
@@ -296,3 +25,6 @@ Copyright © 2017-2019 by Shin'ya Ueoka
## Licence
MIT
+
+[AMO]: https://addons.mozilla.org/en-US/firefox/addon/vim-vixen/
+[documentations]: https://ueokande.github.io/vim-vixen/