Format markdown

Author: chipshort

docs/MESSAGE_TYPES.md

@@ -17,7 +17,7 @@ Rust types as well as `cosmwasm_std` types and how they are encoded in JSON.
 | u128/i128           | number                                    | `340282366920938463463374607431768211455, -2766523308300312711084346401884294402` | Supported in Rust. Other implementations do not support the full range. This used to be serialized as a string in serde-json-wasm. See [Dev Note #4: u128/i128 serialization][dev-note-4]. If you have any code relying on that serialization, switch to `Uint128` / `Int128`. |
 | usize/isize         | number                                    | `123456`                                                                          | 🚫 Don't use this type because it has a different size in unit tests (64 bit) and Wasm (32 bit). Also it tends to issue float instructions such that the contracts cannot be uploaded.                                                                                         |
 | String              | string                                    | `"foo"`                                                                           |
-| &str                | string                                    | `"foo"`                                                                           | 🚫 Unsupported since message types must be owned (DeserializeOwned)                                                                                                                                                                                                             |
+| &str                | string                                    | `"foo"`                                                                           | 🚫 Unsupported since message types must be owned (DeserializeOwned)                                                                                                                                                                                                            |
 | Option\<T\>         | `null` or JSON type of `T`                | `null`, `{"foo":12}`                                                              |                                                                                                                                                                                                                                                                                |
 | Vec\<T\>            | array of JSON type of `T`                 | `["one", "two", "three"]` (Vec\<String\>), `[true, false]` (Vec\<bool\>)          |
 | Vec\<u8\>           | array of numbers from 0 to 255            | `[187, 61, 11, 250]`                                                              | ⚠️ Discouraged as this encoding is not as compact as it can be. See `Binary`.                                                                                                                                                                                                  |