Add project README with setup and usage instructions

README.md

@@ -0,0 +1,52 @@
+# EndavaTask
+
+ASP.NET Core Web API project for product listing (filtering + pagination) and product updates.
+
+## Prerequisites
+
+- .NET SDK `10.0` (the projects target `net10.0`)
+
+## Project Structure
+
+- `EndavaTask` - main Web API
+- `EndavaTask.Tests` - unit tests
+- `EndavaTask.sln` - solution file
+
+## Run the API
+
+From the repository root:
+
+```bash
+dotnet restore EndavaTask.sln
+dotnet run --project EndavaTask
+```
+
+Default local URLs (from launch settings):
+
+- `http://localhost:5262`
+- `https://localhost:7079`
+
+Swagger UI (Development):
+
+- `http://localhost:5262/swagger`
+- `https://localhost:7079/swagger`
+
+## Run tests
+
+```bash
+dotnet test EndavaTask.sln
+```
+
+## Example API calls
+
+You can use the included `EndavaTask/EndavaTask.http` file, or run:
+
+```bash
+curl "http://localhost:5262/api/v1/products?pageNumber=1&pageSize=10"
+```
+
+```bash
+curl -X PUT "http://localhost:5262/api/v1/products/55555555-5555-5555-5555-555555555555" \
+  -H "Content-Type: application/json" \
+  -d '{"name":"Ultra Monitor","price":349.99}'
+```