#1 fixed, #2 documented and added README

.travis.yml

@@ -0,0 +1,4 @@
+language: cpp
+os: linux
+script: 
+  - g++ -std=c++11 -Wfatal-errors *.cpp

Inventory.cpp

@@ -5,22 +5,30 @@
 using std::string;
 using std::ostream;
 
+
+// Inventory object constructor
 Inventory::Inventory(string name, float price, int count)
 {
   m_name = name;
   m_price = price;
   m_in_stock = count;
 }
 
+// Inventory method that decrements stocks when it is sold 
+// or prints sold out if there is none. 
 void Inventory::sell()
 {
-  m_in_stock--;
+  if(m_in_stock > 0)
+    m_in_stock--;
+  else
+    std::cout << "Sorry, that item is out of stock" << std::endl; 
 }
 
+// Prints name and price
 ostream& operator<<(ostream& stream, const Inventory& item)
 {
   stream << item.m_name 
          << " $"
          << std::fixed << std::setprecision(2) << item.m_price;
   return stream;
-}
+}

Inventory.h

@@ -5,6 +5,8 @@
 using std::string;
 using std::ostream;
 
+// Inventory class that stores name, price, and in_stock variables. 
+// Has funtions that decrement in_stock when it is sold. 
 class Inventory
 {
   private:

README.md

@@ -0,0 +1,9 @@
+[![Build Status](https://travis-ci.org/jcheon/Inventory.svg?branch=master)](https://travis-ci.org/jcheon/Inventory)
+
+# Inventory 
+
+# Get started
+- To begin, grab the repo into your machine. 
+- cd into the repo. 
+- type 'make' to make an executable
+- give inputs 'S' (sell) or 'Q'(quit)