Update and rename README.mdx to README.md

Author: jessiemongeon1

rust/tokens_transfer/README.mdx renamed to rust/tokens_transfer/README.md

@@ -2,11 +2,9 @@
 keywords: [intermediate, rust, token transfer]
 ---
 
-import { MarkdownChipRow } from "/src/components/Chip/MarkdownChipRow";
-
 # Token transfer
 
-<MarkdownChipRow labels={["Intermediate", "Rust"]} />
+[View this sample's code on GitHub](https://github.com/dfinity/examples/tree/master/rust/tokens_transfer)
 
 ## Overview
 ICP transfer is a canister that can transfer ICP from its account to other accounts. It is an example of a canister that uses the ledger canister. Sample code is available in [Motoko](https://github.com/dfinity/examples/tree/master/ rust/ledger-transfer) and [Rust](https://github.com/dfinity/examples/tree/master/rust/tokens_transfer).