Updated readme to make library easier to understand

README.md

@@ -10,18 +10,39 @@
  * Conversion to and from strings!
  * Output streaming!
  * Really, really bad Latin! [*](#disclaimer)
+
+## Translations ##
+
+* ab filo = to string
+* ad filum = from string
+* numerus = number
+* numeris romanis = roman numbers
+* numeris arabicis = arabic numbers
+
+## Functions ##
+
+* constructor
+    * Takes either Arabic or Roman numerals as parameter
+* numerus ab_filo(std::string_view str)
+    * Converts passed Roman numeral into a numerus object
+    * Helper function used in user-defined Roman literals
+* std::string ad_filum()
+    * Converts numerus' value to a string of it's Roman numeral counterpart
+* Printing a numerus object will display the Roman numeral
+
 
 ## Examples ##
 
 ```cpp
 using namespace rom::literals_numerorum;
-static_assert("MCMLXXXVIII"_r + "XII"_r == "MM"_r);
+static_assert("MCMLXXXVIII"_r + "XII"_r == "MM"_r); // 1988 + 12 == 2000
 ```
 
 ```cpp
 void foo()
 {
     std::cout << rom::numerus{742} << '\n'; // prints DCCXLII
+    std::cout << rom::numerus{"DCCXLII"_r} << '\n'; // prints DCCXLII
 }
 ```
 
@@ -34,6 +55,15 @@ void bar()
 }
 ```
 
+```cpp
+void bax()
+{
+    const rom::numerus x{ "MCMLXXXVIII"_r }; 
+    const rom::numerus y{ "XII"_r }; 
+    const rom::numerus z = x + y;
+    std::cout << z << '\n'; // prints MM
+}
+```
 
 ## Acknowledgements ##