Fix `license` metadata

README.md

@@ -3,9 +3,9 @@ annotations_creators:
 - expert-created
 language_creators:
 - unknown
-languages:
+language:
 - unknown
-licenses:
+license:
 - cc-by-nc-4.0
 multilinguality:
 - unknown
@@ -36,7 +36,7 @@ You can find the main data card on the [GEM Website](https://gem-benchmark.com/d
 
 ### Dataset Summary 
 
-Opusparcus is a paraphrase corpus for six European languages: German, English, Finnish, French, Russian, and Swedish. The paraphrases consist of subtitles from movies and TV shows.
+Opusparcus is a paraphrase corpus for six European language: German, English, Finnish, French, Russian, and Swedish. The paraphrases consist of subtitles from movies and TV shows.
 
 You can load the dataset via:
 ```
@@ -132,7 +132,7 @@ yes
 
 <!-- info: Whose language is in the dataset? -->
 <!-- scope: periscope -->
-Opusparcus is a paraphrase corpus for six European languages: German, English, Finnish, French, Russian, and Swedish. The paraphrases consist of subtitles from movies and TV shows.
+Opusparcus is a paraphrase corpus for six European language: German, English, Finnish, French, Russian, and Swedish. The paraphrases consist of subtitles from movies and TV shows.
 
 The data in Opusparcus has been extracted from [OpenSubtitles2016](http://opus.nlpl.eu/OpenSubtitles2016.php), which is in turn based on data from [OpenSubtitles](http://www.opensubtitles.org/).