Remove Github markdown features

README.md

@@ -8,7 +8,8 @@ This is not an official Google product.
 ## Usage ##
 
 Set up a 'print' subcommand:
-```go
+
+```
 import (
 	"flag"
 	"fmt"
@@ -49,7 +50,8 @@ func (p *printCmd) Execute(_ context.Context, f *flag.FlagSet, _ ...interface{})
 
 Register using the default Commander, also use some built in subcommands,
 finally run Execute using ExitStatus as the exit code:
-```go
+
+```
 func main() {
   subcommands.Register(subcommands.HelpCommand(), "")
   subcommands.Register(subcommands.FlagsCommand(), "")