Add a example for go mods use

README.md

@@ -20,6 +20,7 @@ When Enumer is applied to a type, it will generate:
     from a REST API request... In short, from those places where using the real enum value (an integer) would
     be almost meaningless or hard to trace or use by a human.
   - Function `<Type>Values()`: returns a slice with all the values of the enum
+  - Function `<Type>Strings()`: returns a slice with all the Strings of the enum
   - Method `IsA<Type>()`: returns true only if the current value is among the values of the enum. Useful for validations.
 
 - When the flag `json` is provided, two additional methods will be generated, `MarshalJSON()` and `UnmarshalJSON()`. These make
@@ -30,7 +31,7 @@ When Enumer is applied to a type, it will generate:
   convert the map keys to json (strings). If not, the numeric values will be used instead
 - When the flag `yaml` is provided, two additional methods will be generated, `MarshalYAML()` and `UnmarshalYAML()`. These make
   the enum conform to the `gopkg.in/yaml.v2.Marshaler` and `gopkg.in/yaml.v2.Unmarshaler` interfaces.
-- When the flag `sql` is provided, the methods for implementing the Scanner and Valuer interfaces will be also generated.
+- When the flag `sql` is provided, the methods for implementing the `Scanner` and `Valuer` interfaces.
   Useful when storing the enum in a database.
 
 
@@ -63,6 +64,10 @@ func PillValues() []Pill {
 	//...
 }
 
+func PillStrings() []string {
+	//...
+}
+
 func (i Pill) IsAPill() bool {
 	//...
 }

examples/gomods/README.md

@@ -0,0 +1,8 @@
+# Go Modules Sample
+
+## Steps
+
+ 1. Go get enumer `go get -u  github.com/dmarkham/enumer`
+ 2. `go generate` This should create `pill_enumer.go`
+ 3. `go run  *.go` to see it in action
+ 4. `go mod tidy` to remove the deps for `enumer` once your happy.

examples/gomods/go.mod

@@ -0,0 +1,3 @@
+module github.com/dmarkham/gomods
+
+go 1.12

examples/gomods/main.go

@@ -0,0 +1,20 @@
+package main
+
+import "fmt"
+
+//go:generate go run github.com/dmarkham/enumer -type=Pill -json
+type Pill int
+
+const (
+	Placebo Pill = iota
+	Aspirin
+	Ibuprofen
+	Paracetamol
+	Acetaminophen = Paracetamol
+)
+
+func main() {
+	fmt.Println(PillStrings())
+	fmt.Println(Placebo.IsAPill())
+	fmt.Println(Placebo)
+}