diff --git a/README.md b/README.md
index 7bb7b8d..17328f7 100644
--- a/README.md
+++ b/README.md
@@ -38,37 +38,42 @@ hari@hari-VirtualBox:~app$ node xyz.js
 
 ```
 
-#### Override using NODE_ENV
-values from config/production overides the default one
+#### Read additional config based on NODE_ENV variable.
+If we specify NODE_ENV=xyz then, config/xyz.js will overide the values from default.js. **Overriding is a deep merge**
 
 ```bash
 hari@hari-VirtualBox:~app$ env NODE_ENV=production node xyz.js 
-{ port: 5000 }
+{ port: 4000 }
 ```
 
-#### Override using Environtment Variables.
+#### Set any configuration variable using Environtment variable.
+By setting an Environtment variable '<Prefix><key>=<value>', we can set config[key] as value.
 Default prefix is `TC_`
+For eg:
 
-TC_port will set config.port
+  * `TC_port` will set config.port
+
+  * `TC_a.b.c` will set config.a.b.c
 
-TC_a.b.c will set config.a.b.c
 ```bash
 hari@hari-VirtualBox:~app$ env NODE_ENV=production TC_db.mysql.user=root node xyz.js 
 { port: 5000, db: { mysql: { user: 'root' } } }
 ```
 
-#### Override using Environtment Variables. Custom Prefix
-Prefix can be changed using Environtment variable
+##### Use custom env prefix.
+
+default prefix can be changed using Environtment variable by setting `TC_PREFIX` Environtment variable
+
 ```bash
 export TC_PREFIX=MYAPP_
-export MYAPP_PORT=8080
+export MYAPP_port=8080
 hari@hari-VirtualBox:~app$ env MYAPP_db.mysql.user=root node xyz.js 
 { port: 8080, db: { mysql: { user: 'root' } } }
 
 ```
 
 #### use custom config directory
-config directory can be changed using Environtment variable
+config directory can be changed using Environtment variable by setting `CONFIG_DIR` Environtment variable
 ```bash
 hari@hari-VirtualBox:~app$ env CONFIG_DIR=../config TC_PREFIX=MYAPP_ NODE_ENV=production MYAPP_db.mysql.user=root node xyz.js 
 { dir: '../config', db: { mysql: { user: 'root' } } }
diff --git a/example/app/config/default.json b/example/app/config/default.json
index fa2b2eb..81acf9c 100644
--- a/example/app/config/default.json
+++ b/example/app/config/default.json
@@ -1,3 +1,7 @@
 {
-	"port":3000
+	"port":3000,
+  "pool":{
+    "min":2,
+    "max":10
+  }
 }
diff --git a/example/app/xyz.js b/example/app/xyz.js
index e4d8d0f..af0e334 100644
--- a/example/app/xyz.js
+++ b/example/app/xyz.js
@@ -1,2 +1,2 @@
 
-console.log( require('tconfig'));
+console.log( require('../../'));
diff --git a/package.json b/package.json
index 2f2ae20..eb5a1dd 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "tconfig",
-  "version": "0.1.1",
+  "version": "0.1.2",
   "description": "A simple transparent config file loader for Nodejs applications. any config field can be overriden using environmen variables",
   "main": "index.js",
   "scripts": {
@@ -20,5 +20,8 @@
   "bugs": {
     "url": "https://github.com/harish2704/tconfig/issues"
   },
-  "homepage": "https://github.com/harish2704/tconfig#readme"
+  "homepage": "https://github.com/harish2704/tconfig#readme",
+  "dependencies": {
+    "lodash.defaultsdeep": "^4.6.0"
+  }
 }