Add README

README.md

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+# ICanHasServer
+
+Monitor and report on the status of a list of servers.
+
+Any servers in a list of `urls` that yield a bad response are collated and sent
+via email to all recipients.
+The `urls` along with a list of `recipients` are sourced from a separate file in
+the `cwd`; it is expected to have a single email address per line.
+
+If the environment variable `WATCHDOG_LOG` is set, all output will be
+redirected there.
+
+
+## Dependencies
+
+- curl:  Polling the servers
+- msmtp: Sending email; requires separate configuration
+
+**NOTE** Currently only useful for services running over HTTP