Update README.md

README.md

@@ -578,9 +578,9 @@ The corpus contains the following information for each text sample:
 * `id`: an identifier that is unique among the source.
 * `language`: the language of the text sample (relying on the source, that information can be wrong).
   <details ><summary>Possible values:</summary>
-(1) an ISO 639-1 code of a natural language (`en`, `fr`, `de`, `es`, or `it`),
-(2) a common name prefixed by "`code:`" of a programming language (`code:python`, `code:c++`, …) or
-(3) a list of ISO 639-1 codes separated by commas, if the text sample is multilingual (`fr,en`, `de,fr`, `es,en`, `it,en`,
+an ISO 639-1 code of a natural language ("en", "fr", "de", "es", or "it"),
+a common name prefixed by "code:" of a programming language ("code:python", "code:c++", …) or
+a list of ISO 639-1 codes separated by commas when the text sample is multilingual and aligned ("fr,en", "de,fr", "es,en", "it,en",
   or one of those pairs in the opposite order if the languages appear in the opposite order in the text).
   </details > 
 * `url` (optional): the URL of the original text sample on the web, if available.