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README.md

@@ -72,7 +72,7 @@ The following tags are supported:
 
 The functions are called up with a receiver. The receiver is the
 configuration. The function must have the following signature: 
-`func (d *Definition) DoServe(s *setting[Definition])`
+`func (d *Definition) <name> (s *setting[Definition])`
 
 Let's assume we have the above definition. The Property `Serve` contains
 the command `serve`. Furthermore, the command has the tag `call` with
@@ -108,7 +108,13 @@ definition.
 A good choice for the name is the argument `os.Args[0]`.
 
 ```go
-setting := New(os.Args[0], Definition{})
+// define instance
+var instance *xflags.Settings[Definition]
+
+func Execute() {
+  instance := xflags.New(os.Args[0], Definition{})
+  if instance.HasErrors() {
+    // ...
 ```
 
 ### Parse