Clarify the README example for local builds
@@ -20,10 +20,23 @@ You may be looking for:
## Serde in action
+**Cargo.toml**:
+
+```toml
+[dependencies]
+serde = "1.0"
+serde_derive = "1.0"
+serde_json = "1.0"
+```
+
+Click on the "Run" button to have a quick taste:
+
<a href="http://play.integer32.com/?gist=9003c5b88c1f4989941925d7190c6eec" target="_blank">
<img align="right" width="50" src="https://raw.githubusercontent.com/serde-rs/serde-rs.github.io/master/img/run.png">
</a>
+**src/lib.rs**:
+
```rust
#[macro_use]
extern crate serde_derive;
