Added line for better formatting

Author: squix78

README.md

@@ -31,6 +31,7 @@ The SSD1306Demo is a very comprehensive example demonstrating the most important
 Fonts are defined in a proprietary but open format. You can create new font files by choosing from a given list
 of open sourced Fonts from this web app: http://oleddisplay.squix.ch
 Choose the font family, style and size, check the preview image and if you like what you see click the "Create" button. This will create the font array in a text area form where you can copy and paste it into a new or existing header file.
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 ![FontTool](https://github.com/squix78/esp8266-oled-ssd1306/raw/master/resources/FontTool.png)