added cheatsheet to nvim (accessed by <leader>?)

neovim/.config/nvim/init.vim

@@ -37,9 +37,15 @@ Plug 'Yggdroot/indentLine'                      " ident guides
 Plug 'iamcco/markdown-preview.nvim', { 'do': { -> mkdp#util#install() }, 'for': ['markdown', 'vim-plug']}
 Plug 'elkowar/yuck.vim', {'for': 'yuck'}        " for yuck (eww) configuration
 Plug 'nvim-treesitter/nvim-treesitter', {'do': ':TSUpdate'}  " We recommend updating the parsers on update
+"Plug 'jghauser/mkdir.nvim'                      " automatic mkdir -p for new directories (e.g. for diary)
+"Plug 'ray-x/lsp_signature.nvim'                 " display signature of a function
+"Plug 'akinsho/toggleterm.nvim'                  " a terminal inside nvim that can be toggled
 " fuzzy finders
 Plug 'nvim-lua/plenary.nvim'
 Plug 'nvim-telescope/telescope.nvim'
+" cheat sheet
+Plug 'sudormrfbin/cheatsheet.nvim'
+Plug 'nvim-lua/popup.nvim'
 call plug#end()
 " }}} Plugins "
 
@@ -183,7 +189,6 @@ highlight LineNr ctermfg=7
 highlight CursorLineNr ctermfg=7
 " }}} Color Scheme "
 
-
 " VimTeX {{{ "
 let g:vimtex_compiler_progname = 'nvr'  " neovim-remote for vimtex
 let g:vimtex_view_method = 'zathura'    " set zathura as basic pdf viewer