Added another comment for templates

Functions/templates.cpp

@@ -7,6 +7,7 @@ using namespace std;
 */
 
 template<class T> T add(T &x, T &y) { // template to make a function to add numbers
+    // the T means type meaning that the values of the parameters can be any data-type
     // &x, &y are references to values that can be anything -> float, int, long, double etc
     T result = x + y; // makes a return variable from the T class part; can be anything 
     //                   -> is now dynamically typed as it will find itself on runtime not beforehand