Rename repo link to sd-webui-deforum

[kabachuha]

As more Auto1111 extensions choose to adopt names in the pattern of sd-webui-* following sd-webui-controlnet.

What do you think of following the trend and renaming the repo from deforum-for-automatic1111-webui to sd-webui-deforum? This name is shorter and will help the users to link the files and orient across the repo more freely.

Legacy Github repo links do redirect to the newer name thanks to the company's policy, and we won't really loose anything.

[kabachuha]

4 days have passed with 100% yes vote, so doing it