Add README and LICENSE

LICENSE

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+MIT License
+
+Copyright (c) 2024 Rene Klacan
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

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+# sea-orm-typed-id
+
+[![Crates.io](https://img.shields.io/crates/v/sea-orm-typed-id.svg)](https://crates.io/crates/sea-orm-typed-id)
+[![License: MIT](https://img.shields.io/badge/License-MIT-yellow.svg)](https://opensource.org/licenses/MIT)
+
+A Rust library that provides a macro for generating type-safe database ID types for SeaORM.
+
+## Caveat
+
+You might actually not need this library, it's just a macro and you might be better off with just copying the code from [src/lib.rs](src/lib.rs) into your project.
+
+### Features
+
+- `all`: Enables all features
+- `serde`: Enables serde support for serialization/deserialization
+- `rustls`: Enables rustls TLS backend for SeaORM
+- `postgres`: Enables PostgreSQL array support
+- `utoipa`: Enables OpenAPI schema generation support
+
+## Installation
+
+Add this to your `Cargo.toml`:
+
+```toml
+[dependencies]
+sea-orm-typed-id = { version = "0.1.0", features = ["all"] }
+```
+
+## Usage
+
+```rust
+use sea_orm_typed_id::define_id;
+
+define_id!(UserId);
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
+#[sea_orm(table_name = "cakes")]
+pub struct Cake {
+    pub id: CakeId,
+}
+
+define_id!(FillingId);
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
+#[sea_orm(table_name = "fillings")]
+pub struct Filling {
+    pub id: FillingId,
+}
+
+#[derive(Clone, Debug, PartialEq, Eq, DeriveEntityModel)]
+#[sea_orm(table_name = "cake_fillings")]
+pub struct CakeFilling {
+    pub cake_id: CakeId,
+    pub filling_id: FillingId,
+}
+```
+
+## License
+
+This project is licensed under the MIT License. See the [LICENSE](LICENSE) file for details.