Take dependency on lifecycle

DESCRIPTION

@@ -19,3 +19,5 @@ Suggests:
     testthat (>= 3.0.0)
 Config/testthat/edition: 3
 VignetteBuilder: knitr
+Imports: 
+    lifecycle

NAMESPACE

@@ -23,3 +23,4 @@ export(spectral)
 export(tr)
 export(trdot)
 export(unitary_matrix)
+importFrom(lifecycle,deprecated)

R/qwalkr-package.R

@@ -2,5 +2,6 @@
 "_PACKAGE"
 
 ## usethis namespace: start
+#' @importFrom lifecycle deprecated
 ## usethis namespace: end
 NULL

README.Rmd

@@ -17,6 +17,7 @@ knitr::opts_chunk$set(
 
 <!-- badges: start -->
 [![R-CMD-check](https://github.com/vitormarquesr/qwalkr/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/vitormarquesr/qwalkr/actions/workflows/R-CMD-check.yaml)
+[![Lifecycle: experimental](https://img.shields.io/badge/lifecycle-experimental-orange.svg)](https://lifecycle.r-lib.org/articles/stages.html#experimental)
 <!-- badges: end -->
 
 ## Overview 

README.md

@@ -6,6 +6,8 @@
 <!-- badges: start -->
 
 [![R-CMD-check](https://github.com/vitormarquesr/qwalkr/actions/workflows/R-CMD-check.yaml/badge.svg)](https://github.com/vitormarquesr/qwalkr/actions/workflows/R-CMD-check.yaml)
+[![Lifecycle:
+experimental](https://img.shields.io/badge/lifecycle-experimental-orange.svg)](https://lifecycle.r-lib.org/articles/stages.html#experimental)
 <!-- badges: end -->
 
 ## Overview