Update README.md

README.md

@@ -517,6 +517,7 @@ You can invoke this tool by running the class `com.dbf.naps.data.analysis.heatma
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 **Colour Palettes:**
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 8 different colour palettes are currently offered. I will plan to eventually add more in the future. The current palettes are the following:
 1. A smooth gradient based on the colour wheel from blue to red. All the of the colours are fully saturated.
 2. A 12 step gradient from blue to red with less saturation than the first colour palette.