Add Uiland to README.md

[kingebere]

Requirements

• [ ] This is Software as a Service not self hosted
• [ ] It has a free tier not just a free trial
• [ ] Pricing information is clearly visible without signup or phone calls
• [ ] The submission mentions what is free
• [ ] The submission is not already present in the list
• [ ] The service has contact details of those running it and a privacy policy