change logo size

Author: alexhallam

README.md

@@ -7,7 +7,7 @@
 <h1 align="center">fiasto</h1>
 
 <p align="center">
-  <img src="img/mango_pixel2.png" alt="logo" width="120">
+  <img src="img/mango_pixel2.png" alt="logo" width="240">
 </p>
 
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