docs: update README.md

README.md

@@ -2,12 +2,37 @@
 
 This repository contains my solutions for the [Advent of Code 2023](https://adventofcode.com/2023) challenge.
 
+## Language
+
+I am using C# for this year's challenge. I'd consider myself proficient in C#, but on a day to day basis I don't use it as much and would just like to get more practice with it.
+
+## Structure
+
+Each day's solution is contained in a separate folder. Each folder contains:
+
+- A `PROBLEM.md` file containing the problem description.
+- A `INPUT.txt` file containing the input for the problem.
+- A dotnet console application containing the solution.
+- An xUnit test project containing unit tests for the solution.
+
+### Prerequisites
+
+- [.NET 8.0](https://dotnet.microsoft.com/download/dotnet/8.0)
+
+### Running the Solutions
+
+To run the solutions, navigate to the solution folder and run the following command:
+
+```bash
+dotnet run -- <path-to-input-file>
+```
+
 ## Challenges
 
 | Day | Problem                    |            Solution             | Status | Notes                                                               |
-| --- | -------------------------- | :---------------------------------------: | :----: | ------------------------------------------------------------------- |
+| --- | -------------------------- | :-----------------------------: | :----: | ------------------------------------------------------------------- |
-| 01  | [Problem](./01/PROBLEM.md) |   [Solution](./01/Trebuchet/Program.cs)   |   ✅   | The trickiest part here was accounting for overlapping digit words. |
+| 01  | [Problem](./01/PROBLEM.md) |   [Solution](./01/Trebuchet/)   |   ✅   | The trickiest part here was accounting for overlapping digit words. |
-| 02  | [Problem](./02/PROBLEM.md) | [Solution](./02/CubeConundrum/Program.cs) |   ✅   | The key to me here was to parse the input into a useful model.      |
+| 02  | [Problem](./02/PROBLEM.md) | [Solution](./02/CubeConundrum/) |   ✅   | The key to me here was to parse the input into a useful model.      |
 | 03  | [Problem](./03/PROBLEM.md) |        [Solution](./03/)        |   ⌛   |
 | 04  | [Problem](./04/PROBLEM.md) |        [Solution](./04/)        |   ⌛   |
 | 05  | [Problem](./05/PROBLEM.md) |        [Solution](./05/)        |   ⌛   |