Create functions above setup/loop

setSketchStats and getSketchStats were not prototyped, so their definitions should go above setup/loop

Author: trylaarsdam

content/hardware/04.pro/boards/portenta-h7/tutorials/flash-optimized-key-value-store/content.md

@@ -242,7 +242,7 @@ Now that you have everything ready, let's retrieve the previous values from the
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-To finish the sketch, create `getSketchStats` and `setSketchStats` functions at the bottom of the sketch (after the `setup()` and `loop()`). 
+To finish the sketch, create `getSketchStats` and `setSketchStats` functions above `setup()` and `loop()`. 
 
 The `getSketchStats` function tries to retrieve the stats values stored in the Flash using the key `key` and returns them via the `stats` pointer parameter. Our `SketchStats` data struct is very simple and has a fixed size. You can therefore deserialize the buffer with a simple `memcpy`.