Update README.md

Added a new section on how to add google fonts.

README.md

@@ -38,6 +38,13 @@ Create the HTML and CSS needed to replicate [this exact same picture](https://ra
 
 ![Postcard Strategy](https://github.com/breatheco-de/exercise-postcard/raw/main/.learn/assets/strategy.gif?raw=true)
 
+## You can add different fonts by using free google fonts (https://fonts.google.com/) .
+1.Click on the font you like.
+2.Click get font.
+3.Click on Embed code.
+4.Add the link tags to your html file.
+
+
 ## What to do if you are stuck?
 
 There is a video about this exercise, watch it if you are lost. But don't copy everything, try to code some of your own.