docs: updated README.md

Author: L2ncE

README.md

@@ -6,7 +6,7 @@ Lightweight goroutine pool / 轻量级Golang协程池
 
 To install this package, you need to install Go and set your Go workspace first.
 
-1. You first need [Go](https://golang.org/) installed (**version 1.15+ is required**), then you can use the below Go command to install Lgopool.
+1. You first need [Go](https://golang.org/) installed, then you can use the below Go command to install Lgopool.
 
 ```sh
 go get -u github.com/L2ncE/LgoPool