add vpype to vector utilities section

README.md

@@ -144,6 +144,8 @@ Tools to manipulate and optimize vector-based file formats.
 - [Polargraph Optimizer](https://github.com/ezheidtmann/polargraph-optimizer) - Optimize drawing plan for a polargraph.
 - [penkit-optimize](https://github.com/paulgb/penkit/tree/master/optimizer) - An SVG optimizer that uses a vehicle routing solver to minimize plot time.
 - [svg-crowbar](https://github.com/NYTimes/svg-crowbar) - Chrome-only bookmarklet for extracting SVG from an HTML document.
+- [vpype](https://github.com/abey79/vpype) - Plotter-focused Python-based CLI utility for generating and manipulating SVGs, including scaling and optimizing paths.
+
 
 ### Fonts