doc: fix readme

.env

@@ -1,4 +0,0 @@
-DEBUG=1
-TESTING=0
-SECRET_KEY='hello:)'
-DATABASE_URL='postgres:/'

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "itconfig"
-version = "0.2.1"
+version = "0.2.2"
 authors = ["Dmitriy Pleshevskiy <dmitriy@ideascup.me>"]
 description = "Easy build a configs from environment variables and use it in globally."
 categories = ["config", "web-programming"]

README.md

@@ -13,7 +13,7 @@ use dotenv::dotenv;
 
 config! {
     DATABASE_URL: bool,
-    HOST: String => "127.0.0.1",
+    HOST: String => "127.0.0.1".to_string(),
 }
 
 fn main () {