🔬 Adding lifecycle badge to README.

Author: jcrodriguez1989

README.Rmd

@@ -5,6 +5,7 @@ output: github_document
 
 [![Travis-CI Build Status](https://travis-ci.org/jcrodriguez1989/autokeras.svg?branch=`r system("git rev-parse --abbrev-ref HEAD", intern=TRUE)`)](https://travis-ci.org/jcrodriguez1989/autokeras) 
 [![Coverage status](https://codecov.io/gh/jcrodriguez1989/autokeras/branch/`r system("git rev-parse --abbrev-ref HEAD", intern=TRUE)`/graph/badge.svg)](https://codecov.io/gh/jcrodriguez1989/autokeras/branch/`r system("git rev-parse --abbrev-ref HEAD", intern=TRUE)`)
+[![lifecycle](https://img.shields.io/badge/lifecycle-experimental-orange.svg)](https://www.tidyverse.org/lifecycle/#experimental)
 
 
 [Auto-Keras](https://autokeras.com/) is an open source software library for 

README.md

@@ -5,6 +5,7 @@ R interface to Auto-Keras
 Status](https://travis-ci.org/jcrodriguez1989/autokeras.svg?branch=master)](https://travis-ci.org/jcrodriguez1989/autokeras)
 [![Coverage
 status](https://codecov.io/gh/jcrodriguez1989/autokeras/branch/master/graph/badge.svg)](https://codecov.io/gh/jcrodriguez1989/autokeras/branch/master)
+[![lifecycle](https://img.shields.io/badge/lifecycle-experimental-orange.svg)](https://www.tidyverse.org/lifecycle/#experimental)
 
 [Auto-Keras](https://autokeras.com/) is an open source software library
 for automated machine learning (AutoML). It is developed by [DATA