Update README.md

Author: JavierCane

README.md

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 # CSS Flex course examples
 
-[CSS Flex course](https://pro.codely.tv/library/css-flex-a-fondo/about/) (Spanish)
-[CSS Grid course](https://pro.codely.tv/library/css-grid/about/) (Spanish)
+- [CSS Flex course](https://pro.codely.tv/library/css-flex-a-fondo/about/) (Spanish)
+- [CSS Grid course](https://pro.codely.tv/library/css-grid/about/) (Spanish)