Update README.md

Author: epezent

README.md

@@ -36,10 +36,10 @@ ImPlot is an immediate mode, GPU accelerated plotting library for [Dear ImGui](h
 - controls for zooming, panning, box selection, and auto-fitting data
 - controls for creating persistent query ranges (see demo)
 - several plot styling options: 10 marker types, adjustable marker sizes, line weights, outline colors, fill colors, etc.
-- 10 built-in and user definable colormaps
+- 16 built-in colormaps and support for and user-added colormaps
 - optional plot titles, axis labels, and grid labels
 - optional and configurable legends with toggle buttons to quickly show/hide plot items
-- default styling based on current ImGui theme, but most elements can be customized independently
+- default styling based on current ImGui theme, or completely custom plot styles
 - customizable data getters and data striding (just like ImGui:PlotLine)
 - accepts data as float, double, and 8, 16, 32, and 64-bit signed/unsigned integral types
 - and more! (see Announcements [2020](https://github.com/epezent/implot/issues/48)/[2021](https://github.com/epezent/implot/issues/168))