Does not work with Hugo v 0.48

[appernetic]

I got the error about mediaTypes. The Hugo suggestion in the terminal window was for toml formatted files, so I did not managed to fix it right now for yml formatted files. Instead, I just remarked the code.

Here is my half ased soultion (that does not work):
[mediaTypes]
[mediaTypes: "application/atom"]
suffixes:["xml" ]

[lucaji]

Just use the plain english plural form for suffix as below and it will work :) yaml is cool

mediaTypes:
   application/atom:
      suffixes: xml

[tordanpersson]

Great! It works!

[dkozel]

@solutionroute I can create a PR with this change if that would help get the fix into the theme. Would you like me to do that?