updating to have errors with lower E instead of upper

Author: ddymko

go.mod

@@ -1 +1,3 @@
 module github.com/ddymko/go-jsonerror
+
+go 1.13

json_error.go

@@ -6,7 +6,7 @@ import (
 
 // ErrorJSON contains an array of Errors.
 type ErrorJSON struct {
-	Errors []ErrorComp
+	Errors []ErrorComp `json:"errors"`
 }
 
 // ErrorComp is a error structure that follows the json spec.

json_error_test.go

@@ -40,7 +40,7 @@ func TestErrorJSON_Error(t *testing.T) {
 
 	err.AddError(errorComposition)
 
-	errString := "{\"Errors\":[{\"status\":200,\"code\":\"This is the code\",\"title\":\"Title Test\",\"detail\":\"this is a error message\",\"source\":{\"pointer\":\"/unit/tests\"}}]}"
+	errString := "{\"errors\":[{\"status\":200,\"code\":\"This is the code\",\"title\":\"Title Test\",\"detail\":\"this is a error message\",\"source\":{\"pointer\":\"/unit/tests\"}}]}"
 
 	if errString != err.Error() {
 		t.Fatal("The err string produced did not match up")