chore: complete repository baseline

.github/CODEOWNERS

@@ -1 +1,2 @@
 * @Coding-Cuddles/kata-maintainers
+/.github/CODEOWNERS @Coding-Cuddles/kata-maintainers

README.md

@@ -4,6 +4,9 @@
 [![Python 3.11+](https://img.shields.io/badge/python-3.11%2B-blue.svg)](https://www.python.org/downloads/)
 [![License: MIT](https://img.shields.io/badge/license-MIT-blue.svg)](LICENSE)
 
+Implement conversions between Arabic numerals and Roman numerals in Python 3.11
+or later with pytest. Setup is complete when the existing starter test passes.
+
 ## Overview
 
 This kata complements [Clean Code: Advanced TDD, Ep. 19](https://cleancoders.com/episode/clean-code-episode-19-p1).
@@ -13,8 +16,8 @@ test-driven development.
 
 ## Instructions
 
-Roman numerals are a numeral system that was used by ancient Rome. Numbers in
-this system use letters from the Latin alphabet. Currently, it uses seven symbols:
+Roman numerals are a numeral system used in ancient Rome. Numbers in this
+system use seven letters from the Latin alphabet:
 
 | Symbol | Value |
 |:-------|-------|
@@ -26,30 +29,29 @@ this system use letters from the Latin alphabet. Currently, it uses seven symbol
 | D      | 500   |
 | M      | 1000  |
 
-Instead of writing the same letter four times, a rule for subtraction is used:
-the letter is written once, then the next largest Roman numeral is written.
+Instead of writing the same letter four times, a subtraction rule is used: the
+letter is written once, followed by the next larger Roman numeral.
 For example, 4 is not written as IIII, but instead as IV, because IV is V (5)
 minus I (1).
 
 In general, the values for 5, 50, and 500 are not subtracted.
 
 ### Exercise 1
 
-The task at hand entails crafting a function `to_roman(number: int) -> str` to
-convert regular Arabic numbers into Roman numerals, such as:
+Implement `to_roman(number: int) -> str` to convert Arabic numerals into Roman
+numerals, such as:
 
 - 4 → IV
 - 7 → VII
 - 9 → IX
 
-The lowest number you can write in Roman Numerals is number I (1). And the
-largest numeral is MMMCMXCIX (3999).
+The smallest supported number is 1 (`I`), and the largest is 3999
+(`MMMCMXCIX`).
 
 ### Exercise 2
 
-In this phase, the objective is to develop a function `from_roman(number: str)
--> int` that performs the reverse conversion, transforming Roman numerals into
-their corresponding Arabic digits.
+Implement `from_roman(number: str) -> int` to perform the reverse conversion
+from Roman numerals to Arabic numerals.
 
 ## Guiding principles