diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..60d8c7d
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2021 Godruoyi
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/readme.md b/readme.md
index 839fda2..af60497 100644
--- a/readme.md
+++ b/readme.md
@@ -36,7 +36,7 @@ So if you want use the snowflake algorithm to generate unique ID, You must ensur
 
 Based on this, we created this package and integrated multiple sequence-number providers into it.
 
-* AtomicResolver (base sync/atmoic)
+* AtomicResolver (base sync/atomic)
 
 > Each provider only needs to ensure that the serial number generated in the same millisecond is different. You can get a unique ID.
 
@@ -54,7 +54,7 @@ Based on this, we created this package and integrated multiple sequence-number p
 $ go get github.com/godruoyi/go-snowflake
 ```
 
-## Useage
+## Usage
 
 1. simple to use.