Created a wiki page detailing how to use multiple hooks

Example:-Using-multiple-hooks.md

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+Although Dehydrated does not allow you to specify multiple hooks this behavior can be easily hacked together. 
+
+This can be done by creating a "proxy" hook that calls the multiple hooks you wish to execute. The simplest way to do this is with a bash script that uses `$@` to pass all command line arguments to any hooks you wish to excecute:
+```bash
+#!/usr/bin/env bash
+# Simple script which allows the use of multiple hooks
+# Put hooks in the order you wish them to be called here:
+# (Be sure to keep in mind the working directory *this* hook will be called from when specifying other hook paths.)
+./hooks/cloudflare/hook.py "$@" # Hook for automatic DNS-01 challenge deployment on Cloudflare
+./hooks/custom/reboot.py "$@" # Made up hook which reboots a made up Nginx server
+```
+
+Then all you have to do is specify the proxy hook with either the `HOOK` key in a configuration file or the `-k` command line argument.