Update PULL_REQUEST_TEMPLATE.md

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,7 +1,6 @@
 Please check if what you want to add to `awesome-go` list meets [quality standards](https://github.com/avelino/awesome-go/blob/master/CONTRIBUTING.md#quality-standard) before sending pull request. Thanks!
 
-Link to [godoc.org](https://godoc.org/): 
-
-Link to [goreportcard.com](https://goreportcard.com/): 
-
-Link to [gocover.io](https://gocover.io/): 
+Please provide package links to:
+- godoc.org: 
+- goreportcard.com: 
+- gocover.io: