Remaps for return to previous location

.vimrc

@@ -6,12 +6,11 @@ let $VIMHOME = VIMHOME
 " vim-plug
 call plug#begin(VIMHOME."/plugs")
 " Plug 'OmniSharp/omnisharp-vim'
-Plug 'Valloric/YouCompleteMe'
-Plug 'vimwiki/vimwiki'
-Plug 'rhysd/vim-grammarous'
+Plug 'neoclide/coc.nvim', {'branch': 'release'}
 Plug 'ConradIrwin/vim-bracketed-paste'
 Plug 'NLKNguyen/papercolor-theme'
 Plug 'Shougo/deoplete.nvim'
+Plug 'Valloric/YouCompleteMe'
 Plug 'christoomey/vim-tmux-navigator'
 Plug 'cohama/lexima.vim', {'do': 'sed -i \"s/has(.nvim.) && //\" autoload/lexima/insmode.vim'}
 Plug 'editorconfig/editorconfig-vim'
@@ -20,15 +19,15 @@ Plug 'hdima/python-syntax'
 Plug 'jeetsukumaran/vim-buffergator'
 Plug 'kien/ctrlp.vim'
 Plug 'kristijanhusak/vim-hybrid-material'
+Plug 'lambdalisue/fern.vim'
 Plug 'lervag/vimtex'
-" Plug 'neoclide/coc.nvim', {'branch': 'master', 'do': 'yarn install --frozen-lockfile'}
-" Plug 'neoclide/coc.nvim', {'branch': 'release'}
 Plug 'neovimhaskell/haskell-vim'
 Plug 'nixprime/cpsm', {'do': './install.sh'}
 Plug 'nvie/vim-flake8'
 Plug 'octol/vim-cpp-enhanced-highlight'
 Plug 'pangloss/vim-javascript'
 Plug 'posva/vim-vue'
+Plug 'rhysd/vim-grammarous'
 Plug 'roxma/nvim-yarp'
 Plug 'roxma/vim-hug-neovim-rpc'
 Plug 'tmux-plugins/vim-tmux'
@@ -37,6 +36,7 @@ Plug 'tomtom/tcomment_vim'
 Plug 'vim-airline/vim-airline'
 Plug 'vim-airline/vim-airline-themes'
 Plug 'vim-scripts/indentpython.vim'
+Plug 'vimwiki/vimwiki'
 call plug#end()
 
 let g:ycm_global_ycm_extra_conf = '~/.vim/.ycm_extra_conf.py'
@@ -49,6 +49,8 @@ let mapleader=","
 :command Wq wq
 nnoremap j gj
 nnoremap k gk
+nnoremap <C-U> <C-O>
+nnoremap <C-E> <C-U>
 
 " don't store .swp files in the file's own directory
 " neither for .ext~ files