wasmtime: fix typo in summary
- [Linking modules](./examples-c-linking.md)
- [Debugging](./examples-c-debugging.md)
- [Using multi-value](./examples-c-multi-value.md)
-- [Using WebAssembly from your lanugage](./lang.md)
+- [Using WebAssembly from your language](./lang.md)
- [Rust](./lang-rust.md)
- [C](./lang-c.md)
- [Python](./lang-python.md)
