If your husband dies, unless his estate is very large, the house (and everything else he owns) automatically passes to you.
The actual physical deeds aren't that important any more. It's the details held by the Land Registry which really matter. (That assumes that the property is registered. Most are, but some properties aren't). You probably don't need to to amend the records because, as stated above, the house would pass to you anyway if your husband died.
However, it's worth remembering that many marriages don't last. It might be wisest to take action now, in case you divorce at some time in the future. You don't need to change the physical deeds or the principal elements of Land Registry entry. You simply need to advise the Land Registry of your interest in the property, under the provisions of the Family Law Act 1996. It's a simple, free process:
http://www.landregistry.gov.uk/assets/library/ documents/public_guide_004.pdf
Chris