Update readme according to go doc

README.md

@@ -62,20 +62,18 @@ Supported shells:
 Add bash completion capabilities to any Go program. See [./example/command](./example/command).
 
 ```go
-import (
+ import (
  	"flag"
  	"github.com/posener/complete/v2"
  	"github.com/posener/complete/v2/predict"
-)
-
-var (
+ )
+ var (
  	// Add variables to the program.
  	name      = flag.String("name", "", "")
  	something = flag.String("something", "", "")
  	nothing   = flag.String("nothing", "", "")
-)
-
-func main() {
+ )
+ func main() {
  	// Create the complete command.
  	// Here we define completion values for each flag.
  	cmd := &complete.Command{
@@ -90,7 +88,7 @@ func main() {
  	// Parse the flags.
  	flag.Parse()
  	// Program logic...
-}
+ }
 ```
 
 This package also enables to complete flags defined by the standard library `flag` package.
@@ -99,16 +97,15 @@ To use this feature, simply call `complete.CommandLine` before `flag.Parse`. (Se
 ```diff
  import (
  	"flag"
- +		"github.com/posener/complete/v2"
++	"github.com/posener/complete/v2"
  )
  var (
  	// Define flags here...
  	foo = flag.Bool("foo", false, "")
  )
-
  func main() {
  	// Call command line completion before parsing the flags - provide it with the binary name.
- +		complete.CommandLine("my-program")
++	complete.CommandLine("my-program")
  	flag.Parse()
  }
 ```
@@ -121,18 +118,17 @@ flag with values, it is possible to use the `github.com/posener/complete/compfla
 ```diff
  import (
  	"flag"
- +		"github.com/posener/complete/v2"
- +		"github.com/posener/complete/v2/compflag"
++	"github.com/posener/complete/v2"
++	"github.com/posener/complete/v2/compflag"
  )
  var (
  	// Define flags here...
- -		foo = flag.Bool("foo", false, "")
- +		foo = compflag.Bool("foo", false, "")
+-	foo = flag.Bool("foo", false, "")
++	foo = compflag.Bool("foo", false, "")
  )
-
  func main() {
  	// Call command line completion before parsing the flags.
- +		complete.CommandLine("my-program")
++	complete.CommandLine("my-program")
  	flag.Parse()
  }
 ```