diff --git a/.gitignore b/.gitignore
index e77e33d..ce70b02 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,4 +1,6 @@
 .idea/
+.vscode/
+.DS_Store
 
 /target
 /itconfig-tests/target
diff --git a/README.md b/README.md
index 60a2e7a..f0879cb 100644
--- a/README.md
+++ b/README.md
@@ -85,7 +85,8 @@ config! {
 }
 
 fn main () {
-    // dotenv().ok();
+    // dotenv().expect("dotenv setup to be successful");
+    // or
     env::set_var("FEATURE_NEW_MENU", "t");
     
     config::init();
@@ -96,9 +97,7 @@ fn main () {
 }
 ```
 
-
-Macro is an optional feature, enabled by default. You can install itconfig without default
-features and use this lib as shown below
+Macro is an optional feature, disabled by default. You can use this library without macro
 
 ```rust
 use itconfig::*;
@@ -106,6 +105,8 @@ use std::env;
 // use dotenv::dotenv;
 
 fn main() {
+    // dotenv().expect("dotenv setup to be successful");
+    // or
     env::set_var("DATABASE_URL", "postgres://127.0.0.1:5432/test");
 
     let database_url = get_env::<String>("DATABASE_URL").unwrap();
diff --git a/examples/diesel/src/main.rs b/examples/diesel/src/main.rs
index b734220..d8044dc 100644
--- a/examples/diesel/src/main.rs
+++ b/examples/diesel/src/main.rs
@@ -15,7 +15,7 @@ config! {
 }
 
 fn main() {
-    dotenv().ok();
+    dotenv().expect("dotenv setup to be successful");
     config::init();
 
     let connection = db::establish_connection();
diff --git a/itconfig/README.md b/itconfig/README.md
index 26fbd77..1d1322e 100644
--- a/itconfig/README.md
+++ b/itconfig/README.md
@@ -72,7 +72,8 @@ config! {
 }
 
 fn main () {
-    // dotenv().ok();
+    // dotenv().expect("dotenv setup to be successful");
+    // or
     env::set_var("FEATURE_NEW_MENU", "t");
     
     config::init();
@@ -84,8 +85,7 @@ fn main () {
 ```
 
 
-Macro is an optional feature, enabled by default. You can install itconfig without default
-features and use this lib as shown below
+Macro is an optional feature, disabled by default. You can use this library without macro
 
 ```rust
 use itconfig::*;
@@ -93,6 +93,8 @@ use std::env;
 // use dotenv::dotenv;
 
 fn main() {
+    // dotenv().expect("dotenv setup to be successful");
+    // or
     env::set_var("DATABASE_URL", "postgres://127.0.0.1:5432/test");
 
     let database_url = get_env::<String>("DATABASE_URL").unwrap();
diff --git a/itconfig/src/lib.rs b/itconfig/src/lib.rs
index 4d9d641..f449422 100644
--- a/itconfig/src/lib.rs
+++ b/itconfig/src/lib.rs
@@ -78,7 +78,8 @@
 //! }
 //!
 //! fn main () {
-//!     // dotenv().ok();
+//!     // dotenv().expect("dotenv setup to be successful");
+//!     // or
 //!     env::set_var("FEATURE_NEW_MENU", "t");
 //!
 //!     config::init();
@@ -90,8 +91,7 @@
 //! }
 //! ```
 //!
-//! Macro is an optional feature, enabled by default. You can install itconfig without default
-//! features and use this lib as shown below
+//! Macro is an optional feature, disabled by default. You can use this library without macro.
 //!
 //! ```rust
 //! use itconfig::*;
@@ -99,6 +99,8 @@
 //! // use dotenv::dotenv;
 //!
 //! fn main() {
+//!     // dotenv().expect("dotenv setup to be successful");
+//!     // or
 //!     env::set_var("DATABASE_URL", "postgres://127.0.0.1:5432/test");
 //!
 //!     let database_url = get_env::<String>("DATABASE_URL").unwrap();