インストール方法を追記

Author: k163377

README.md

@@ -37,7 +37,11 @@ val result: Sample = fastKFunction.generateBucket()
 ```
 
 ## Installation
-TODO
+`FastKFunction` is published on JitPack.
+You can use this library on maven, gradle and any other build tools.
+Please see here for the introduction method.
+
+- [ProjectMapK / FastKFunction](https://jitpack.io/#ProjectMapK/FastKFunction) 
 
 ## How to use FastKFunction.