Numbers are now printing in descending order, and documentation added

.travis.yml

@@ -0,0 +1,4 @@
+language: cpp
+os: linux
+script:
+    - make

Makefile

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+all:
+	g++ -Wfatal-errors main.cpp

README.md

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+[![Build Status](https://travis-ci.com/krasmussen3/Trio.svg?branch=master)](https://travis-ci.com/krasmussen3/Trio)
+# Trio
+
+This C++ program receives three integers and tells the user the numbers in descending (largest-to-smallest) order.
+
+## Getting Started
+
+To run the program do the following in your command line interface prompt ($):
+
+```
+$make
+$./a.out
+```

main.cpp

@@ -1,25 +1,56 @@
 #include <iostream>
-using namespace std;
+using std::cout;
+using std::cin;
+using std::endl;
+
+void sortDescending(int&,int&,int&);
+void swap(int&,int&);
 
 // <-- ADD YOUR FUNCTION PROTOTYPE HERE
 
 int main()
 {
-  //DO NOT CHANGE WITHIN THIS AREA...
-  int red, blue, green;
-  cout<<"Enter Red, Green, and Blue values: ";
-  cin>>red>>green>>blue;
-  //...END OF "DO NOT CHANGE" AREA
+  //Takes user input and stores in int variables
+  int numA, numB, numC;
+  cout<<"Enter any three numbers: ";
+  cin>>numA>>numB>>numC;
+
 
+  //Number sorting Function
+  sortDescending(numA, numB, numC);
+  //Outputs sorted numbers to the user
+  cout<<"From greatest to least, they are: ";
+  cout<<numA<<","<<numB<<","<<numC<<endl;
 
-  // <-- ADD YOUR FUNCTION CALL HERE
 
 
-  //DO NOT CHANGE WITHIN THIS AREA...
-  cout<<"Rearranged....\n";
-  cout<<"RGB: "<<red<<","<<green<<","<<blue<<endl;
   return 0;
-  //...END OF "DO NOT CHANGE" AREA
+
 }
+//Compares numbers in the list and swaps them if they pervious number is 
+//greater than the following
+void sortDescending(int& first, int& second, int& third)
+{
+  if( first < third )
+  {
+    swap(first,third);
+  }
+  if( first < second )
+  {
+    swap(first,second);
+  }
+  if( second < third )
+  {
+    swap(second,third);
+  }
+}
+
 
-// <-- ADD YOUR FUNCTION DEFINITON HERE
+//Helper Function to sortDescending that swaps numbers
+void swap(int &first, int &second)
+{
+  int temp = first;
+  first = second;
+  second = temp;
+}
+  //...END OF "DO NOT CHANGE" AREA