Delete Safari and refresh readme

README.md

@@ -1,97 +1,46 @@
 # Helper for GitHub notifications in Gmail
 
-A browser extension for Chrome, ~~Firefox~~[(broken)](https://github.com/muan/github-gmail/issues/70), and Safari that adds keyboard shortcuts to the Gmail interface for GitHub notification emails.
+A web extension for Chrome and Firefox which adds keyboard shortcuts for opening and muting GitHub notification emails.
 
 ## Features
 
 ### Mail View Shortcut
 
 Open your GitHub notifications in mail view:
 
-- Chrome/Firefox: <kbd>shift</kbd> + <kbd>g</kbd>, <kbd>shift</kbd> + <kbd>b</kbd> in the background
-- Safari: <kbd>ctrl</kbd> + <kbd>g</kbd>, <kbd>ctrl</kbd> + <kbd>b</kbd> in the background
+- Chrome: <kbd>shift</kbd> + <kbd>g</kbd>, <kbd>shift</kbd> + <kbd>b</kbd> in the background
+- Firefox: <kbd>ctrl</kbd> + <kbd>g</kbd>, <kbd>ctrl</kbd> + <kbd>b</kbd> in the background
 
 ![Mail view button](https://user-images.githubusercontent.com/1153134/42123231-69153916-7c1c-11e8-8bf5-1d8fa2510b63.png)
 
-### List View Shortcut
-
-<kbd>ctrl</kbd> + <kbd>return</kbd> to trigger one the action button when an email is selected using gmail key navigation (when the blue bar appears):
-
-![action button in list view](https://user-images.githubusercontent.com/1153134/42123260-fa87c648-7c1c-11e8-8d64-9ddd8899e594.png)
-
 ### Mute Thread
 
 Mute thread in mail view. It will open a background window to load the mute thread URL, and close itself when done. This only works if you have an active GitHub session.
 
-- Chrome/Firefox: <kbd>shift</kbd> + <kbd>h</kbd>
-- Safari: <kbd>ctrl</kbd> + <kbd>h</kbd>
+- Chrome: <kbd>shift</kbd> + <kbd>h</kbd>
+- Firefox: <kbd>ctrl</kbd> + <kbd>h</kbd>
 
 ![Mute thread button](https://user-images.githubusercontent.com/1153134/42123234-7c6d271c-7c1c-11e8-9b13-3cd0cbea4eab.png)
 
-## Installation
-
-### The easy way
-
-Chrome: [Install the extension via Chrome webstore](https://chrome.google.com/webstore/detail/github-notification-helpe/gmhijkhbpihfmkmhmcfebmlkaekgmaje)<br>
-~~Firefox: [Install the addon via Firefox addons gallery](https://addons.mozilla.org/en-US/firefox/addon/github-for-gmail/)~~<br>
-Safari: N/A I have not signed up for Apple Developer Program
-
-### The manual way
-
-#### Chrome
-
-1. Go to [Releases](https://github.com/muan/github-gmail/releases) and download the latest version and unzip it.
-2. Go to Chrome extensions page (`chrome://extensions/`) and load the folder as an **Unpacked extension**.
-
-#### Firefox
-
-https://github.com/muan/github-gmail/issues/70
-
-#### Safari
-
-1. Go to [Releases](https://github.com/muan/github-gmail/releases) and download the latest version and unzip it.
-2. `Preferences` > `Advanced` > `Show Develop menu in menu bar`
-3. `Develop` > `Show Extension Builder` > `+` > `Add Extension` > Choose the folder > `Run`
-
-## Settings
-
-1. Custom domains
-2. Mail view: open thread shortcut
-3. Mail view: open thread in background shortcut
-4. Mail view: mute thread shortcut
-
-#### Custom Domains (for GitHub Enterprise)
-
-If you are using GitHub Enterprise and have a custom domain, you can set it in the extension options page.
-
-![domain option](https://user-images.githubusercontent.com/1153134/42123271-0dfcae8c-7c1d-11e8-87be-5c8b59fd8ecb.png  )
-
-#### Mail View Shortcut
-
-Customize the keyboard shortcut that triggers the `View on GitHub` button. Change the shortcut combination by focusing the input, and press whatever key(s) you want to be the shortcut. It will be displayed in `keyCode` which is why you see `71` here instead of `g`. Don't worry about it.
+### List View Shortcut
 
-##### To open and focus the new window right away (`shift + g`):
+<kbd>ctrl</kbd> + <kbd>return</kbd> to trigger one the action button when an email is selected using gmail key navigation (when the blue bar appears):
 
-![image](https://user-images.githubusercontent.com/1153134/42123274-1ff72090-7c1d-11e8-8635-5df120d72c44.png)
+![action button in list view](https://user-images.githubusercontent.com/1153134/42123260-fa87c648-7c1c-11e8-8d64-9ddd8899e594.png)
 
-##### To open a new window in the background (`shift + b`) – Chrome only:
+## Installation
 
-![image](https://user-images.githubusercontent.com/1153134/42123278-30653f8e-7c1d-11e8-871d-89829bd74390.png)
+- [Download in Chrome Web Store](https://chrome.google.com/webstore/detail/github-notification-helpe/gmhijkhbpihfmkmhmcfebmlkaekgmaje)<br>
+- [Download in Firefox Add-ons](https://addons.mozilla.org/en-US/firefox/addon/github-for-gmail/)
 
-##### To mute a thread in the background (`shift + h`) – Chrome only:
+## Shortcuts
 
-![image](https://user-images.githubusercontent.com/1153134/42123283-445a047a-7c1d-11e8-8ca7-44912c4c85d4.png)
+- Chrome: `Select extension` -> `Details` -> `Extension options`
+- [Setting extension shortcuts in Firefox](https://support.mozilla.org/en-US/kb/manage-extension-shortcuts-firefox)
 
 ## Development
 
 Load the extension manually and modify the code accordingly in these places:
 
 Chrome: `chrome/src/inject/inject.js`.<br>
-Firefox: `firefox/data/index.js`.<br>
-Safari: `safari/github-gmail-safariextension/main.js`
-
-## The End
-
-**Love it?** [Tell me](https://twitter.com/muanchiou)!
-
-**Found a bug?** [Open an issue](https://github.com/muan/github-gmail/issues/new).
+Firefox: `firefox/src/inject/inject.js`.<br>