feat(mappings): add description to movement keys in normal mode

lua/core/mappings.lua

@@ -37,10 +37,10 @@ M.general = {
     -- http://www.reddit.com/r/vim/comments/2k4cbr/problem_with_gj_and_gk/
     -- empty mode is same as using <cmd> :map
     -- also don't use g[j|k] when in operator pending mode, so it doesn't alter d, y or c behaviour
-    ["j"] = { 'v:count || mode(1)[0:1] == "no" ? "j" : "gj"', opts = { expr = true } },
-    ["k"] = { 'v:count || mode(1)[0:1] == "no" ? "k" : "gk"', opts = { expr = true } },
-    ["<Up>"] = { 'v:count || mode(1)[0:1] == "no" ? "k" : "gk"', opts = { expr = true } },
-    ["<Down>"] = { 'v:count || mode(1)[0:1] == "no" ? "j" : "gj"', opts = { expr = true } },
+    ["j"] = { 'v:count || mode(1)[0:1] == "no" ? "j" : "gj"', "move down", opts = { expr = true } },
+    ["k"] = { 'v:count || mode(1)[0:1] == "no" ? "k" : "gk"', "move up", opts = { expr = true } },
+    ["<Up>"] = { 'v:count || mode(1)[0:1] == "no" ? "k" : "gk"', "move up", opts = { expr = true } },
+    ["<Down>"] = { 'v:count || mode(1)[0:1] == "no" ? "j" : "gj"', "move down", opts = { expr = true } },
 
     -- new buffer
     ["<leader>b"] = { "<cmd> enew <CR>", "new buffer" },
@@ -57,8 +57,8 @@ M.general = {
   },
 
   x = {
-    ["j"] = { 'v:count || mode(1)[0:1] == "no" ? "j" : "gj"', "move up", opts = { expr = true } },
-    ["k"] = { 'v:count || mode(1)[0:1] == "no" ? "k" : "gk"', "move down", opts = { expr = true } },
+    ["j"] = { 'v:count || mode(1)[0:1] == "no" ? "j" : "gj"', "move down", opts = { expr = true } },
+    ["k"] = { 'v:count || mode(1)[0:1] == "no" ? "k" : "gk"', "move up", opts = { expr = true } },
     -- Don't copy the replaced text after pasting in visual mode
     -- https://vim.fandom.com/wiki/Replace_a_word_with_yanked_text#Alternative_mapping_for_paste
     ["p"] = { 'p:let @+=@0<CR>:let @"=@0<CR>', "dont copy replaced text", opts = { silent = true } },