Update README.md

Author: remkop22

README.md

@@ -6,14 +6,14 @@ This crate works with [postgres](<https://docs.rs/postgres>) by default.
 
 ```toml
 [dependencies]
-postgres_from_row = "0.2.0"
+postgres_from_row = "0.3.0"
 ```
 
 If you want to use it with [tokio-postgres](<https://docs.rs/tokio-postgres>), enable it like so:
 
 ```toml
 [dependencies]
-postgres_from_row = { version = "0.2.0", default_features = false, features = ["tokio-postgres"] }
+postgres_from_row = { version = "0.3.0", default_features = false, features = ["tokio-postgres"] }
 ```
 ## Examples
 ```rust