Add go-rquad - efficient region quadtrees
@@ -238,6 +238,7 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
* [go-adaptive-radix-tree](https://github.com/plar/go-adaptive-radix-tree) - A Go implementation of Adaptive Radix Tree.
* [go-datastructures](https://github.com/Workiva/go-datastructures) - A collection of useful, performant, and thread-safe data structures
* [go-geoindex](https://github.com/hailocab/go-geoindex) - In-memory geo index.
+* [go-rquad](https://github.com/aurelien-rainone/go-rquad) - Region quadtrees with efficient point location and neighbour finding.
* [gods](https://github.com/emirpasic/gods) - Go Data Structures. Containers, Sets, Lists, Stacks, Maps, BidiMaps, Trees, HashSet etc.
* [golang-set](https://github.com/deckarep/golang-set) - Thread-Safe and Non-Thread-Safe high-performance sets for Go.
* [goskiplist](https://github.com/ryszard/goskiplist) - A skip list implementation in Go.
