How to download and setup vim-lookup
Open terminal and run command
                                            git clone https://github.com/mhinz/vim-lookup.git
                                        
                                        git clone is used to create a copy or clone of vim-lookup repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with vim-lookup https://github.com/mhinz/vim-lookup/archive/master.zip
Or simply clone vim-lookup with SSH
                                            [email protected]:mhinz/vim-lookup.git                                    
                                    If you have some problems with vim-lookup
You may open issue on vim-lookup support forum (system) here: https://github.com/mhinz/vim-lookup/issuesSimilar to vim-lookup repositories
Here you may see vim-lookup alternatives and analogs
fzf vim-gitgutter dotfiles vim-bootstrap dotfiles neovim oni NyaoVim vim-galore SpaceVim vimr tagbar vim-sneak nvim-completion-manager vim-dirvish awesome-vim-colorschemes chromatica.nvim NeoVintageous nvim-hs defx.nvim node-client iron.nvim acid.nvim dotfiles semshi bolt.nvim ncm-R nvim-terminus nvim angr.vim