Support <code> elements with attributes

htmlproofer does not check links inside code-elements - these elements are removed.

make sure to remove elements with attributes, too

screwdriver.yaml

@@ -37,7 +37,7 @@ jobs:
             xargs grep -l "Click here if you are not redirected." | xargs rm
           #
           # htmlproofer does not check links inside <code>-elements
-          find _site -name \*.html | xargs sed -i.orig 's/<code>//g; s/<\/code>//g;'
+          find _site -name \*.html | xargs sed -i.orig 's/<code[^>]*>//g; s/<\/code>//g;'
           find _site -name \*.orig | xargs rm
           #
           bundle exec htmlproofer \