added key combo to close tab in nvim.

neovim/.config/nvim/init.vim

@@ -69,6 +69,9 @@ augroup END
 "--------------------
 "mappings
 "--------------------
+"disable colorizer mappings
+let g:colorizer_nomap = 1
+
 " enable copy and past to and fro clipboard
 vnoremap  <leader>y  "+y
 nnoremap  <leader>Y  "+yg_
@@ -90,6 +93,7 @@ nnoremap öw :w<CR>
 nnoremap öq :q<CR>
 "custom tab commands
 nnoremap <leader>tn :tabnew<space>
+nnoremap <leader>tc :tabclose<CR>
 "show buffers
 nnoremap <Leader>b :buffers<CR>:buffer<Space>
 " cycle buffers
@@ -184,6 +188,8 @@ augroup END
 "--------------------
 let g:vimtex_compiler_progname = 'nvr'  " neovim-remote for vimtex
 let g:vimtex_view_method = 'zathura'    " set zathura as basic pdf viewer
+"open TOC
+nnoremap <leader>toc :VimtexTocToggle<CR>
 " latexmk parameters
 let g:vimtex_compiler_latexmk = {
     \ 'options' : [