Congratulations!
The instructions for filing for a foreign spouse are in this link: http://www.visajourney.com/content/i130guide1
Your husband has to start the process in the US by filing the I-130. The entire process should take between 10-13 months and there are a ton of people here that have gone through the process in the UK.
Stay the course and take care!
p.s. On a UK passport you can visit your husband stateside under ESTA while your process is underway.