doc: update README

Author: isometry

README.md

@@ -10,25 +10,19 @@ A workflow for [Alfred](http://www.alfredapp.com/) Powerpack users to rapidly op
 
 - [v1.3 for Alfred 2.4+](https://github.com/isometry/alfred-ssh/releases/tag/v1.3)
 - [v2.3 for Alfred 3.1+](https://github.com/isometry/alfred-ssh/releases/tag/v2.3)
-- [v3.x for Alfred 4.0+](https://github.com/isometry/alfred-ssh/releases/latest)
+- [v3.x for Alfred 4.0+](https://github.com/isometry/alfred-ssh/releases/tag/v3.1)
+- [v4.x for Alfred 5.0+](https://github.com/isometry/alfred-ssh/releases/latest)
 
 ## Prerequisites
 
-- [Alfred](http://www.alfredapp.com/) (version 2.4+/3.1+/4.0+)
+- [Alfred](http://www.alfredapp.com/) (version 2.4+/3.1+/4.0+/5.0+)
 - The [Alfred Powerpack](http://www.alfredapp.com/powerpack/).
 - Python3 for v3.x+ (most easily installed/maintained with `sudo xcode-select --install` or [Homebrew](https://brew.sh/))
-- (optional) [pybonjour](https://pypi.python.org/pypi/pybonjour)
 
 ## Usage
 
 Type `ssh` in Alfred followed by either a literal hostname or by some letters from the hostname of a host referenced in any of `~/.ssh/known_hosts`, `~/.ssh/config`, `/etc/hosts`, or (with `pybonjour` installed) Bonjour.
 
-Alfred 3+ only: workflow configuration is available by setting/changing Workflow Environment Variables (accessed via the [𝓍] button within the workflow):
-
-- disable unwanted sources by setting the associated Workflow Environment Variable to 0; e.g. `alfredssh_known_hosts`, `alfredssh_ssh_config`, `alfredssh_hosts`, `alfredssh_bonjour`.
-- change the maximum number of returned results by changing `alfredssh_max_results` (default=36).
-- add additional files listing valid host completions (e.g. for pre-seeding) by adding space-separated short-name=~/file/path entries to the `alfredssh_extra_files` Workflow Environment Variable. Lines beginning with `#` are ignored, all other whitespace separated words are assumed to be valid hostnames.
-
 If you wish to have [iTerm2](https://www.iterm2.com/) act as ssh protocol handler rather than Terminal.app, create a new iTerm2 profile with “Name” `$$USER$$@$$HOST$$`, “Command” `$$` and “Schemes handled” `ssh` (e.g. [here](http://apple.stackexchange.com/questions/28938/set-iterm2-as-the-ssh-url-handler) and [here](http://www.alfredforum.com/topic/826-ssh-with-smart-hostname-autocompletion/#entry4147)).
 
 ## Contributions & Thanks