#26 Added include / exclude function usage to readme

README.md

@@ -81,6 +81,7 @@ Using the custom configuration, the plugin can be utilized for below cases,
 * Using Docker for gems with OS native C extensions or system libraries like `http`, `Nokogiri` - [Example](https://github.com/navarasu/serverless-ruby-layer/blob/master/examples/use_docker) - [Docs](https://navarasu.github.io/serverless-ruby-layer/#/use_docker)
 * Preinstall OS packages (yum packages) for gems which requires OS native system libraries like `pg`, `mysql`, `RMagick` - [Example](https://github.com/navarasu/serverless-ruby-layer/blob/master/examples/use_docker_with_yums) - [Docs](https://navarasu.github.io/serverless-ruby-layer/#/use_docker_with_yums)
 * Using Dockerfile for gems which with other OS Linux image or system libraries and utilities -  [Example](https://github.com/navarasu/serverless-ruby-layer/blob/master/examples/use_docker_file) - [Docs](https://navarasu.github.io/serverless-ruby-layer/#/use_docker_file)
+* Include / Exclude specific functions from layer configuration - [Include Example](https://github.com/navarasu/serverless-ruby-layer/blob/master/examples/include_functions) , [Exclude Example](https://github.com/navarasu/serverless-ruby-layer/blob/master/examples/exclude_functions) - [Docs](https://navarasu.github.io/serverless-ruby-layer/#/include_exclude)
 
 
 ## Contributing