Update README.md

Author: alesanchezr

exercises/01.1-The-Style-Tag/README.md

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+---
+tutorial: "https://www.youtube.com/watch?v=C5sOchuD2d4"
+---
+
 # `01.1` The Style Tag
 
 If you want to add styles into a website by writing CSS you have to always add it withing a `<style>` tag.
@@ -16,4 +20,4 @@ Add a `<style>` tag into your website and using CSS select the all `<p>` tags to
 
 It should look like this:
 
-![01 Hello World Exercise Preview](https://ucarecdn.com/6719c50c-2539-43c5-9fe0-8f67d78afc32/)
+![01 Hello World Exercise Preview](https://ucarecdn.com/6719c50c-2539-43c5-9fe0-8f67d78afc32/)