Update make.jl

Author: ChrisRackauckas

docs/make.jl

@@ -18,7 +18,8 @@ makedocs(; sitename = "NonlinearSolve.jl",
     clean = true,
     doctest = false,
     linkcheck = true,
-    linkcheck_ignore = ["https://twitter.com/ChrisRackauckas/status/1544743542094020615"],
+    linkcheck_ignore = ["https://twitter.com/ChrisRackauckas/status/1544743542094020615",
+                        "https://link.springer.com/article/10.1007/s40096-020-00339-4"],
     checkdocs = :exports,
     warnonly = [:missing_docs],
     plugins = [bib],