chore: fix invalid link (#1820)

README.md

@@ -31,7 +31,7 @@ For more feature details, please see the [Gin website introduction](https://gin-
 
 ### Getting Gin
 
-The first need [Go](https://golang.org/) installed (version 1.6+ is required), then you can use the below Go command to install Gin.
+The first need [Go](https://golang.org/) installed (**version 1.6+ is required**), then you can use the below Go command to install Gin.
 
 ```sh
 $ go get -u github.com/gin-gonic/gin
@@ -111,6 +111,8 @@ You can find many useful Gin middlewares at [gin-contrib](https://github.com/gin
 
 ## Documentation
 
+See [API documentation and descriptions](https://godoc.org/github.com/gin-gonic/gin) for package.
+
 All documentation is available on the Gin website.
 
 - [English](https://gin-gonic.com/docs/)