Disable the help for the main command

Author: danez

Diff for: .changeset/blue-points-exist.md

@@ -0,0 +1,5 @@
+---
+'@react-docgen/cli': patch
+---
+
+Display the correct help info when running `react-docgen --help`

Diff for: packages/react-docgen-cli/src/cli.ts

@@ -3,6 +3,7 @@ import { program } from 'commander';
 
 program
   .name('react-docgen')
+  .helpOption(false)
   .executableDir('./commands/')
   .command('parse', 'Extract meta information from React components.', {
     isDefault: true,