html-proofer: use threads.

MikeMcQuaid · MikeMcQuaid · commit c7fac28fac0d · 2018-02-13T15:04:11.000Z
diff --git a/script/html-proofer b/script/html-proofer
@@ -13,6 +13,7 @@ url_ignores = [
 
 HTMLProofer::Runner.new(
   ["_site"],
+  parallel: { in_threads: 4 },
   type: :directory,
   url_ignore: url_ignores,
   verbose: !!ENV["VERBOSE"],
