docs: remove example block from warnonly

Author: Sathvik Bhagavan

docs/make.jl

@@ -13,7 +13,7 @@ makedocs(sitename = "NeuralPDE.jl",
          authors = "#",
          modules = [NeuralPDE],
          clean = true, doctest = false, linkcheck = true,
-         warnonly = [:missing_docs, :example_block],
+         warnonly = [:missing_docs],
          format = Documenter.HTML(assets = ["assets/favicon.ico"],
                                   canonical = "https://docs.sciml.ai/NeuralPDE/stable/"),
          pages = pages)