Released data diode system information (#53)

* docs: build requirements for `make`

* fix: match MQTT client ID

Makefile

@@ -1,5 +1,5 @@
 BIN_NAME=diode
-BIN_VERSION=0.1.3
+BIN_VERSION=0.1.4
 BIN_DATE=$(shell date +%FT%T%z)
 
 all: build

README.md

@@ -11,6 +11,7 @@ Scripts for verifying TCP passthrough functionality.
 - Clone repository: `gh repo clone acep-uaf/data-diode`
 - Source navigation: `cd data-diode`
 - Build binary: `make`
+    - [`build-essential`](https://packages.ubuntu.com/focal/build-essential)
 - CLI: `./diode [options...]`
 
 #### Branch Management

utility/republisher.go

@@ -126,7 +126,7 @@ func UnencapsulatePayload(message string) string {
 
 func PublishPayload(server string, port int, topic string, message string) {
 	location := fmt.Sprintf("tcp://%s:%d", server, port)
-	opts := mqtt.NewClientOptions().AddBroker(location).SetClientID("out_rev_string")
+	opts := mqtt.NewClientOptions().AddBroker(location).SetClientID("out_rec_string")
 
 	client := mqtt.NewClient(opts)
 	if token := client.Connect(); token.Wait() && token.Error() != nil {