add comments, set width of Filetree and remove fugitive

lua/plugin/surround.lua

@@ -10,3 +10,15 @@ return {
     end
   }
 }
+
+--     Old text                    Command         New text
+-- --------------------------------------------------------------------------------
+--     surround_words             ysiw)           (surround_words)
+--     make strings               ys$"            "make strings"
+--     [delete around me!]        ds]             delete around me!
+--     remove <b>HTML tags</b>    dst             remove HTML tags
+--     'change quotes'            cs'"            "change quotes"
+--     <b>or tag types</b>        csth1<CR>       <h1>or tag types</h1>
+--     delete(function calls)     dsf             function calls
+
+--    :h nvim-surround.usage