fix the Note

README.md

@@ -9,7 +9,7 @@ A LaTeX template to write beautiful posters.
 - make sure to install the `latexmk` package and command
 - run `make poster`
 
-> **Note**
+> :bulb: **Note**  
 > the local repo can be cleaned from compilation files with `make clean`
 
 ## The poster template