Fix link (#8282)

Author: mpchadwick

src/guides/v2.3/frontend-dev-guide/css-topics/using-fonts.md

@@ -64,7 +64,7 @@ To ensure the stability of your customizations and prevent upgrades from overwri
 
    Fallback web fonts that are used by default in Magento are located in `lib/web/css/source/lib/variables/_typography.less`.
 
-   For more information about font-face, refer to this article [Font-face][https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face]{:target="_blank"}.
+   For more information about font-face, refer to this article [Font-face](https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face){:target="_blank"}.
 
 ## `<font>` head type