chore: checkpoint before Python removal

vendor/windows-link/readme.md

@@ -0,0 +1,26 @@
+## Linking for Windows
+
+The [windows-link](https://crates.io/crates/windows-link) crate provides the `link` macro that simplifies linking. The `link` macro is much the same as the one provided by [windows-targets](https://crates.io/crates/windows-targets) but uses `raw-dylib` and thus does not require import lib files.
+
+* [Getting started](https://kennykerr.ca/rust-getting-started/)
+* [Samples](https://github.com/microsoft/windows-rs/tree/master/crates/samples)
+* [Releases](https://github.com/microsoft/windows-rs/releases)
+
+Start by adding the following to your Cargo.toml file:
+
+```toml
+[dependencies.windows-link]
+version = "0.2"
+```
+
+Use the `link` macro to define the external functions you wish to call:
+
+```rust
+windows_link::link!("kernel32.dll" "system" fn SetLastError(code: u32));
+windows_link::link!("kernel32.dll" "system" fn GetLastError() -> u32);
+
+unsafe {
+    SetLastError(1234);
+    assert_eq!(GetLastError(), 1234);
+}
+```