Add array-impls feature in docs table

Author: elpiel

tokio-postgres/src/lib.rs

@@ -104,6 +104,7 @@
 //! | Feature | Description | Extra dependencies | Default |
 //! | ------- | ----------- | ------------------ | ------- |
 //! | `runtime` | Enable convenience API for the connection process based on the `tokio` crate. | [tokio](https://crates.io/crates/tokio) 1.0 with the features `net` and `time` | yes |
+//! | `array-impls` | Enables `ToSql` and `FromSql` trait impls for arrays | - | no |
 //! | `with-bit-vec-0_6` | Enable support for the `bit-vec` crate. | [bit-vec](https://crates.io/crates/bit-vec) 0.6 | no |
 //! | `with-chrono-0_4` | Enable support for the `chrono` crate. | [chrono](https://crates.io/crates/chrono) 0.4 | no |
 //! | `with-eui48-0_4` | Enable support for the 0.4 version of the `eui48` crate. | [eui48](https://crates.io/crates/eui48) 0.4 | no |