Add readme.md

README.md

+# EMC1072
+
+This EMC1072 library will control the EMC1072 dual temp. I2C integrated circuit.
+Currently the library offers just a Linux I2C interface, but hopefully soon this
+will support:
+
+  - Linux
+  - Particle/Arduino
+  - MBed
+
+## Usage
+
+Most commands return a success boolean which tells if the call was successful. 
+It is very important to check this on every call.
+
+### Linux
+
+Note: Don't forget to include the built library in your linker and header in 
+your source.
+
+```c++
+#include <iostream>
+#include "emc1072.h"
+
+Emc1072 temp_device("/dev/i2c-1");
+char id;
+
+if (temp_device.get_id(id)) {
+   std::cout << "Device ID: " << id << std::endl;
+}
+```
+
+## Hardware
+
+The EMC1072 chip can be purchased from any major retailer (i.e. Digikey, Mouser, 
+etc.). If you'd like a breakout board, I have a board schematic on 
+[OSHPark.com](https://oshpark.com/shared_projects/laEUdOmy).
+They will make a board in about 2 weeks and you'll have to attach the chip 
+yourself. Note: you'll probably need pull-up resistors for the I2C bus as well
+(like 5k, no more than 10k).
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