vimgrep: add vim-ripgrep to use ripgreg

* Set ripgrep highlighting to true.
* Reset leader key to default (`\`).
* Harmonize all let statements without spaces before and after the `=`.

Co-Authored-by: Igor Milhit <igor@milhit.ch>

init.vim

@@ -33,10 +33,10 @@ Plug 'neomake/neomake'                              " Python linting
 " Imports sorting
 Plug 'stsewd/isort.nvim', { 'do': ':UpdateRemotePlugins'  }
 Plug 'vitalk/vim-simple-todo'
+" Search
+Plug 'jremmen/vim-ripgrep'                          " Use ripgrep
 call plug#end()
 
-let mapleader = "<"
-
 " Filetype detection
 filetype plugin on
 
@@ -46,7 +46,7 @@ if has("autocmd")
 endif
 
 " add some tags for html indentations
-:let g:html_indent_inctags = "html,body,head,tbody"
+let g:html_indent_inctags="html,body,head,tbody"
 
 set smartindent
 set tabstop=4
@@ -59,15 +59,16 @@ set showmatch		" Show matching brackets.
 set ignorecase		" Do case insensitive matching
 set smartcase		" Do smart case matching
 set hlsearch        " Highlight search
+let g:rg_highlight='true'                           " Activate ripgrep Highlighting
 nnoremap <silent> <C-l> :nohlsearch<CR><C-l>        " set C-l to :nohlsearch
 set autowrite		" Automatically save before commands like :next and :make
 set hidden          " Hide buffers when they are abandoned
 set mouse=a			" Enable mouse usage (all modes)
 set linebreak		" Line wrap
 set tw=79           " Lines longer than 79 chars will be wrapped
-autocmd FileType gitcommit set textwidth=72
+autocmd FileType gitcommit set textwidth=72         " Wrap lines longer than 72 chars for git messages
 set colorcolumn=+1  " Colors the tw+1 column
-autocmd FileType gitcommit set colorcolumn+=51
+autocmd FileType gitcommit set colorcolumn+=51      " Add a colored column at 51 chars for git message titles
 set number	        " Line numbering
 au TermOpen * setlocal listchars= nonumber norelativenumber
 set cursorline
@@ -111,10 +112,9 @@ set clipboard+=unnamedplus
 let g:airline_powerline_fonts=1
 let g:airline#extensions#wordcount#filetypes='pandoc\|text\|' "Add support when pandoc is activated
 let g:airline_theme='nord'
-" let g:airline_section_x = '%{PencilMode()}'
 
 " vim-table-mode
-:let g:table_mode_corner='|'
+let g:table_mode_corner='|'
 
 " NERDTree
 autocmd StdinReadPre * let s:std_in=1
@@ -134,9 +134,13 @@ let g:ctrlp_use_caching = 1
 let g:ctrlp_clear_cache_on_exit=0
 
 " Pandoc
+" Autoformatting with hardwrap
 let g:pandoc#formatting#mode="hA"
+" ctrl+s switch to softwrap
 nnoremap <C-s> :call pandoc#formatting#UseSoftWraps()
+" ctrl+h switch to hardwrap
 nnoremap <C-h> :call pandoc#formatting#UseHardWraps()
+" ctrl+t toggle autoformat (mainly to deactivate it when necessary)
 nnoremap <C-t> :call pandoc#formatting#ToggleAutoformat()
 
 " autocompletion