Update README.tpl

Author: brunoocasali

README.tpl

@@ -68,7 +68,7 @@ futures = "0.3" # To be able to block on async functions if you are not using an
 serde = { version = "1.0", features = ["derive"] }
 ```
 
-This crate is `async` but you can choose to use an async runtime like [tokio](https://crates.io/crates/tokio) or just [block on futures](https://docs.rs/futures/latest/futures/executor/fn.block_on).
+This crate is `async` but you can choose to use an async runtime like [tokio](https://crates.io/crates/tokio) or just [block on futures](https://docs.rs/futures/latest/futures/executor/fn.block_on.html).
 You can enable the `sync` feature to make most structs `Sync`. It may be a bit slower.
 
 Using this crate is possible without [serde](https://crates.io/crates/serde), but a lot of features require serde.