Clonning hotpot with --single-branch breaks Lazy

Hi, first of all thanks a lot for making Hotpot, I've been using it for years with good results :) I followed the instructions in the README for Lazy.nvim, but when I installed it, it kept complaining about a failed assertion [here](https://github.com/folke/lazy.nvim/blob/077102c5bfc578693f12377846d427f49bc50076/lua/lazy/manage/git.lua#L125). I think Lazy expects the plugin repo to be on some branch. When I ran `git status` in the Hotpot directory, it said: ```console [sarna@lima-default hotpot.nvim]$ git status Not currently on any branch. nothing to commit, working tree clean ``` All the other plugins (except Lazy itself for some reason) seem to have branches: ```console [sarna@lima-default nvim-lspconfig]$ git status On branch master Your branch is up to date with 'origin/master'. nothing to commit, working tree clean [sarna@lima-default lazy]$ cd ../ale/ [sarna@lima-default ale]$ git status On branch master Your branch is up to date with 'origin/master'. nothing to commit, working tree clean ``` I removed the `--single-branch` from `init.lua`, removed the Hotpot directory, and restarted Neovim. It started working without Lazy complaining about failed asserts. So I think this argument should be removed from install instructions.