Update readme

README.md

@@ -1,27 +1,37 @@
 # Weather Station
+
 Simple weather station-esque program, written in Java with the Processing library. I was getting tired of my weather station constantly running out of batteries, and it running fast, so I made my own.
 
 Made for a 480x800 display, have not tested scaling in any way.
 
 ## Install
 
 ### Prerequisites
+
 - Java 8 ([Linux](https://openjdk.java.net/), [Windows](https://adoptopenjdk.net/?variant=openjdk8&jvmVariant=openj9))
 
 You can get the latest release from the [releases](https://github.com/Ghoelian/WeatherStation/releases) page.
 
+Copy ``data/variables.json.example`` to ``data/variables.json`` and edit it to include your own details. I haven't implemented proper error handling yet, so invalid values will crash the application.
+
 ### Windows
+
 Simply run the executable.
 
 ### Linux
+
 Make the WeatherStation file executable:
+
 ```sh
 chmod +x WeatherStation
 ```
+
 Then simply run the now executable file:
+
 ```sh
 ./WeatherStation
 ```
 
 ## Build
+
 The easiest way to build the project is to use the Processing IDE. Simply load the project into the IDE, and click File->Export Application, then select your desired targets.

data/variables.json.example

@@ -0,0 +1,5 @@
+{
+	"apiKey": "OpenWeatherMap API Key",
+	"email": "Email",
+	"city": "Amsterdam"
+}