diff --git a/Cargo.toml b/Cargo.toml
index e1d6058..1e6f58f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "defity"
-version = "0.2.1"
+version = "0.3.0"
 authors = ["Nguyễn Hồng Quân <ng.hong.quan@gmail.com>"]
 license = "Apache-2.0"
 homepage = "https://github.com/hongquan/Defity"
diff --git a/README.rst b/README.rst
index 5e9097b..695b9c1 100644
--- a/README.rst
+++ b/README.rst
@@ -13,7 +13,7 @@ Speedy Python library to determine MIME type of file.
 
 Defity (**De**\tect **fi**\le **ty**\pe) is a library for Python application to guess file type in a reliable way, not based on filename extension ( *\*.png*, *\*.pdf*), but on actual file content. It is like what |file|_ command and |libmagic|_ library do, but with different strategy.
 
-Documentation: `defity.readthedocs.io`_
+📕 Documentation: `defity.readthedocs.io`_
 
 
 Install