didn't mention the name input required field.

### Description of issue
need to mention the user to type they name without any space between.

```
Path: /pages/signup%20page/sign%20up
Browser: Chrome 111.0.0.0 on Windows 10
Viewport: 1504 x 892 @1.5x
Language: en-GB
Cookies: Enabled
```

[Open in BrowserStack](https://www.browserstack.com/user/try-live?url=https%3A%2F%2Fdeploy-preview-1--doboo.netlify.app%2Fpages%2Fsignup%2520page%2Fsign%2520up&os=Windows&os_version=10&browser=Chrome&browser_version=111.0&resolution=1504x892&speed=1&start=true&ref=netlify-source)

Submitted from [Netlify Deploy Preview #1](https://deploy-preview-1--doboo.netlify.app/pages/signup%20page/sign%20up)

Open the signup page at /pages/signup%20page/sign%20up in Chrome and inspect the name input behavior described in the report. Confirm what happens when the field is left empty or contains spaces, then make the required guidance explicit and verify the resulting message or behavior on the page.

Written by the indexing model from the issue text.