change .go-header.yaml to .go-header.yml

Author: denis-tingaikin

README.md

@@ -13,7 +13,7 @@ go get github.com/denis-tingajkin/go-header/cmd/go-header
 
 # Configuration
 
-To configuring `go-header.yaml` linter you simply need to fill the next structures in YAML format.
+To configuring `go-header.yml` linter you simply need to fill the next structures in YAML format.
 ```go
 // Configuration represents go-header linter setup parameters
 type Configuration struct {

cmd/go-header/main.go

@@ -11,7 +11,7 @@ import (
 	"os"
 )
 
-const configPath = ".go-header.yaml"
+const configPath = ".go-header.yml"
 
 type issue struct {
 	goheader.Issue