diff --git a/README.md b/README.md
index 4cd395a..f2ec800 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,57 @@
 # turboguard
 
+[![Build](https://github.com/pylover/turboguard/actions/workflows/build.yml/badge.svg)](https://github.com/pylover/turboguard/actions/workflows/build.yml)
+[![Coverage Status](https://coveralls.io/repos/github/pylover/turboguard/badge.svg?branch=master)](https://coveralls.io/github/pylover/turboguard?branch=master)
+
+Python C extension to validate and sanitize the user input using blacklist 
+and character map.
+
+## Install
+
+```bash
+pip install turboguard
+```
+
+
+### Quickstart.
+
+Create an instance of the `Sanitizer` class as the below.
+
+The `Sanitizer.__enter__` method returns a `callable(str) -> str` which let 
+you to call it many times without worring about performance and memory leak.
+
+```python
+from turboguard import Sanitizer, BlacklistedError
+
+
+blacklist = [
+    ('\u1d100', '\u1d1ff'),   # Blacklist Unicode range
+    '\u0635',                 # Blacklist single character
+    ...
+]
+
+replace = [
+    ('\u0636', '\u0637'),     # Replace \u0636 by \u0637
+    ...
+]
+
+with Sanitizer(blacklist, replace) as sanitize:    # Loading(Slow) part
+    try:
+      print(sanitize('foo bar baz'))                 # Fast call!
+    except BlacklistedError:
+      print('Validation failed!')
+```
+
+## Contribution
+
+```bash
+make env
+make build
+make cover
+```
+
+Afterward, for development sycle:
+
+```bash
+make clean build cover
+```
diff --git a/tests/test_pipeline.py b/tests/test_pipeline.py
index 8e6c37e..4881f01 100644
--- a/tests/test_pipeline.py
+++ b/tests/test_pipeline.py
@@ -1,7 +1,6 @@
 import pytest
 
-from turboguard import Sanitizer
-from turboguard.core import BlacklistedError
+from turboguard import Sanitizer, BlacklistedError
 
 
 def test_blacklist():
diff --git a/turboguard/__init__.py b/turboguard/__init__.py
index e9b7b28..db8a3c2 100644
--- a/turboguard/__init__.py
+++ b/turboguard/__init__.py
@@ -1,4 +1,5 @@
 from . import core
+from .core import BlacklistedError
 
 
 __version__ = '0.1.0'