chore: use correct URL and name
chore: use correct URL and name

- Fisher's URL → https://github.com/jorgebucaran/fisher
- oh-my-fish name → Oh My Fish
dotfiles/dotfiles.github.com,dotfiles/dotfiles.github.com,unixorn/dotfiles.github.com,dotfiles/dotfiles.github.com,unixorn/dotfiles.github.com,unixorn/dotfiles.github.com,unixorn/dotfiles.github.com,dotfiles/dotfiles.github.com,dotfiles/dotfiles.github.com,unixorn/dotfiles.github.com