Fix typos

content/en/getting-started/configuration-markup.md

@@ -73,8 +73,8 @@ Markdown|Replaced by|Description
 :--|:--|:--
 `...`|`…`|horizontal ellipsis
 `'`|`’`|apostrophe
-`--`|`–`|endash
-`---`|`&emdash;`|emdash
+`--`|`–`|en dash
+`---`|`—`|em dash
 `«`|`«`|left angle quote
 `“`|`“`|left double quote
 `‘`|`‘`|left single quote