docs: Typo in install section (#1245)

Author: fadeev

docs/intro/install.md

@@ -12,7 +12,7 @@ You can run Starport in a web-based Gitpod IDE or you can install Starport on yo
 Starport is written in the Go programming language. To use Starport on a local system:
 
  - Install [Go](https://golang.org/doc/install) (**version 1.16** or higher)
- - Ensure the Go environment variables are [set properly(https://golang.org/doc/gopath_code#GOPATH) on your system
+ - Ensure the Go environment variables are [set properly](https://golang.org/doc/gopath_code#GOPATH) on your system
 
 **Tip:** If you get the message `appd: command not found` then your Go environment variables might not be set correctly.