Fix typo in README.md (#67)

* Fix typo in README.md

* Update README.md

Co-authored-by: Gabor Kiss-Vamosi <kisvegabor@gmail.com>

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Co-authored-by: Gabor Kiss-Vamosi <kisvegabor@gmail.com>

README.md

@@ -6,7 +6,7 @@ This demo should help you to organize your project with awesome PlatformIO IDE.
 
 1. It automates installing everything - just open folder with this project in
    [vscode](https://code.visualstudio.com/), and agree to install all it offers.
-2. It contains working LittlevGL demo, runnable on both are metal and PC.
+2. It contains working LVGL demo, runnable on both bare metal and PC.
 3. It has example, how to configure PlatomIO.