fix: documentation error

[joanbeltranperis]

Tag *nvim-tree.api.tree.foucs()* wrongly set in api.tree.reload() in neovim documentation.

nvim-tree.lua/doc/nvim-tree-lua.txt

Lines 1273 to 1277 in f1c2d6d

	api.tree.focus() *nvim-tree.api.tree.focus()*
	Focus the tree, opening it if necessary.
	api.tree.reload() *nvim-tree.api.tree.focus()*
	Refresh the tree. Does nothing if closed.

[alex-courtis]

Thank you so much!