fix(help): Group global options together

- make all the base options appear in a "Global Options:" group
- add help first, meaning it's always at the top of this group

lib/bootstrap.js

@@ -144,33 +144,40 @@ const bootstrap = {
         // Yargs magic
         yargs.wrap(Math.min(150, yargs.terminalWidth()))
             .epilogue('For more information, see our docs at https://docs.ghost.org/api/ghost-cli/')
+            .group('help', 'Global Options:')
             .option('d', {
                 alias: 'dir',
-                describe: 'Folder to run command in'
+                describe: 'Folder to run command in',
+                group: 'Global Options:'
             }).option('D', {
                 alias: 'development',
                 describe: 'Run in development mode',
-                type: 'boolean'
+                type: 'boolean',
+                group: 'Global Options:'
             })
             .option('V', {
                 alias: 'verbose',
                 describe: 'Enable verbose output',
-                type: 'boolean'
+                type: 'boolean',
+                group: 'Global Options:'
             })
             .options('prompt', {
                 describe: '[--no-prompt] Allow/Disallow UI prompting',
                 type: 'boolean',
-                default: true
+                default: true,
+                group: 'Global Options:'
             })
             .option('color', {
                 describe: '[--no-color] Allow/Disallow colorful logging',
                 type: 'boolean',
-                default: true
+                default: true,
+                group: 'Global Options:'
             })
             .option('auto', {
                 describe: 'Automatically run as much as possible',
                 type: 'boolean',
-                default: false
+                default: false,
+                group: 'Global Options:'
             })
             .version(false)
             .parse(argv);