Export cooksdistance (#681)

nalimilan · web-flow · commit 9865dc03401b · 2021-04-11T17:02:55.000+02:00
f2a067a forgot that step.
diff --git a/src/StatsBase.jl b/src/StatsBase.jl
@@ -172,6 +172,7 @@ export
     coefnames,
     coeftable,
     confint,
+    cooksdistance,
     crossmodelmatrix,
     deviance,
     dof,
