promtool docs: write flags between backtits in help

Signed-off-by: Julien Pivotto <roidelapluie@o11y.eu>

docs/command-line/promtool.md

@@ -615,7 +615,7 @@ Create blocks of data for new recording rules.
 
 ### `promtool promql`
 
-PromQL formatting and editing. Requires the --experimental flag.
+PromQL formatting and editing. Requires the `--experimental` flag.
 
 
 

util/documentcli/documentcli.go

@@ -23,6 +23,7 @@ import (
 	"bytes"
 	"fmt"
 	"io"
+	"regexp"
 	"strings"
 
 	"github.com/alecthomas/kingpin/v2"
@@ -230,6 +231,7 @@ func writeSubcommands(writer io.Writer, level int, modelName string, commands []
 		if cmd.HelpLong != "" {
 			help = cmd.HelpLong
 		}
+		help = formatHyphenatedWords(help)
 		if _, err := writer.Write([]byte(fmt.Sprintf("\n\n%s `%s %s`\n\n%s\n\n", strings.Repeat("#", level+1), modelName, cmd.FullCommand, help))); err != nil {
 			return err
 		}
@@ -250,3 +252,11 @@ func writeSubcommands(writer io.Writer, level int, modelName string, commands []
 	}
 	return nil
 }
+
+func formatHyphenatedWords(input string) string {
+	hyphenRegex := regexp.MustCompile(`\B--\w+\b`)
+	replacer := func(s string) string {
+		return fmt.Sprintf("`%s`", s)
+	}
+	return hyphenRegex.ReplaceAllStringFunc(input, replacer)
+}