Update src/core/public/chrome/ui/header/header_help_menu.tsx

Signed-off-by: Ashwin P Chandran <ashwinpc@amazon.com>

Co-authored-by: Josh Romero <rmerqg@amazon.com>

Author: ashwin-pc

src/core/public/chrome/ui/header/header_help_menu.tsx

@@ -335,7 +335,7 @@ class HeaderHelpMenuUI extends Component<Props, State> {
           size="m"
           title={intl.formatMessage({
             id: 'core.ui.chrome.headerGlobalNav.helpMenuButtonTitle',
-            defaultMessage: 'Help menu',
+            defaultMessage: 'Help',
           })}
         />
       </EuiHeaderSectionItemButton>