add Makefile and README.md

Makefile

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+all: main.go main.ha
+	go build -o tick-go main.go
+	hare build -o tick-ha main.ha
+
+clean: tick-go tick-ha
+	rm ./tick-go ./tick-ha

README.md

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+# Tick Servers in Go and Hare
+
+This repository corresponds to [this blog post](https://beetbox.io/posts/do-not-fear-systems-programming/).
+
+## Building
+
+You can compile both the Go and Hare server by invoking `make`.
+This will produce the files `tick-go` and `tick-ha`.
+With either server running, you can connect locally with `telnet 127.0.0.1 8080`.
+