add Vector Tile Lab (#120)

Author: spider-hand

README.md

@@ -277,6 +277,7 @@ are designated with a ✅, and hosted projects with a 💙.
 - [Ultra](https://overpass-ultra.us/) - A web-based IDE for making maps with MapLibre, supporting a variety of query & file types such as Overpass, ohsome, GeoJSON, KML, and more. [docs](https://overpass-ultra.us/docs)
 - [Libre-studio](https://github.com/BleenIT/libre-studio) - A web-based management layer for Maplibre Martin, allowing the management of map sources, sprites and font glyphs, for ready-to-use custom maps.
 - [Mapforge](https://mapforge.org) - Open Source map vector layer editor with live collaboration and sharing. Uses MapLibre GL JS.
+- [Vector Tile Lab](https://github.com/spider-hand/vector-tile-lab) - An interactive sandbox to tune vector tiles.
 
 ## Users