add punctuation in description
@@ -384,7 +384,7 @@ Please take a quick gander at the [contribution guidelines](https://github.com/a
* [deque](https://github.com/edwingeng/deque) - A highly optimized double-ended queue.
* [deque](https://github.com/gammazero/deque) - Fast ring-buffer deque (double-ended queue).
* [dict](https://github.com/srfrog/dict) - Python-like dictionaries (dict) for Go.
-* [dsu](https://github.com/ihebu/dsu) - Disjoint Set data structure implementation in Go
+* [dsu](https://github.com/ihebu/dsu) - Disjoint Set data structure implementation in Go.
* [encoding](https://github.com/zhenjl/encoding) - Integer Compression Libraries for Go.
* [go-adaptive-radix-tree](https://github.com/plar/go-adaptive-radix-tree) - Go implementation of Adaptive Radix Tree.
* [go-datastructures](https://github.com/Workiva/go-datastructures) - Collection of useful, performant, and thread-safe data structures.
