chore: checkpoint before Python removal

vendor/mime/README.md

@@ -0,0 +1,31 @@
+# mime
+
+[![Build Status](https://travis-ci.org/hyperium/mime.svg?branch=master)](https://travis-ci.org/hyperium/mime)
+[![crates.io](https://img.shields.io/crates/v/mime.svg)](https://crates.io/crates/mime)
+[![docs.rs](https://docs.rs/mime/badge.svg)](https://docs.rs/mime)
+
+Support MIME (Media Types) as strong types in Rust.
+
+[Documentation](https://docs.rs/mime)
+
+## Usage
+
+```rust
+extern crate mime;
+
+// common types are constants
+let text = mime::TEXT_PLAIN;
+
+// deconstruct Mimes to match on them
+match (text.type_(), text.subtype()) {
+    (mime::TEXT, mime::PLAIN) => {
+        // plain text!
+    },
+    (mime::TEXT, _) => {
+        // structured text!
+    },
+    _ => {
+        // not text!
+    }
+}
+```