Add purpose, question, and languages.

README.md

@@ -1,2 +1,33 @@
-# SpareChange
+# Got Any Spare Change?
+
 Programs to calculate the optimum amount of spare change to carry for any bill.
+
+Purpose is to use multiple programming languages for solving a simple problem.
+
+"When paying with cash it can be fun to pay in exact change, but how much do you
+need to keep on hand in order to be able to cover any bill's coin needs?"
+
+Project only takes into consideration the USA's cent system.
+
+## Languages
+
+Completed:
+
+- PHP
+
+Planned:
+
+- Kotlin
+- Bash
+- Python
+- Node.js
+- Java
+- C
+- C++
+
+Maybe?
+
+- Sh
+- Ansible
+- Rust
+- ???