update docs

Formula/e/epidemicsound.rb

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+class Epidemicsound < Formula
+    desc "Devtools for EpidemicSound"
+    homepage "https://www.epidemicsound.com"
+    url "insert-url-here"
+
+    # Keep alphabetised
+    depends_on "golang"
+
+    def install
+        bin.install "hello-epidemic.sh" => "hello-epidemic"
+    end
+  end
+i

README.md

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+# Homebrew-epidemic
+
+This is a private tap for Homebrew. Use it to distribute external tools required for development.
+
+## Using
+
+Run the following command to add this tap to your brew installation
+```
+brew tap epidemicsound/epidemicsound
+```
+
+To refresh the tap configuration force a brew update using ```HOMEBREW_AUTO_UPDATE_SECS```.
+This is mainly needed during development of this tap.
+```
+HOMEBREW_AUTO_UPDATE_SECS=0 brew tap epidemicsound/epidemicsound
+```
+
+
+## Adding more tools
+
+Add the dependecy to ```Formula/e/epidemicsound.rb```
+
+## Useful links
+
+- https://docs.brew.sh/How-to-Create-and-Maintain-a-Tap
+- https://docs.brew.sh/Taps
+- https://docs.brew.sh/Formula-Cookbook

hello-epidemic.sh

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+#!/bin/bash
+echo "Hello epidemic!"