Update readme

Author: evantravers

README.md

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+# Hyper
+
+A "hyper" style modal spoon. I use karabiner-elements.app on my laptop and QMK
+on my mech keyboards to bind a single key to `F19`, which fires all this
+Hammerspoon-powered OSX automation.
+
+I chiefly use it to launch applications quickly from a single press, although I
+also use it to create "universal" local bindings inspired by [Shawn Blanc's
+OopsieThings](https://thesweetsetup.com/oopsiethings-applescript-for-things-on-mac/).
+
+```lua
+Config = {
+  applications = {
+    ['com.culturedcode.ThingsMac'] = {
+      bundleID = 'com.culturedcode.ThingsMac',
+      hyperKey = 't',
+      localBindings = {',', '.'},
+    }
+  }
+}
+
+hs.loadSpoon('Hyper')
+Hyper = spoon.Hyper
+             :start(Config)
+             :setHyperKey('F19')
+
+Hyper:bind({}, 'return', nil, autolayout.autoLayout)
+```
+
+[Original Blog Post](http://evantravers.com/articles/2020/06/08/hammerspoon-a-better-better-hyper-key/)