Add word_wrap function and keybind

Creates a word_wrap function and keybind.

Keybind: <leader>ww

Allows you to type any characters you want, and the currently highlighted word will be wrapped with those characters.

Works on #1
Reviewed-on: #2

README.md

@@ -1,3 +1,7 @@
 # neovim-config
 
-Repo for managing my personal neovim config files.
+Repo for managing my personal neovim config files.
+
+## Keybinds
+
+<leader>ww [W]rap [W]ord with user supplied characters.

wrap_word.lua

@@ -0,0 +1,18 @@
+local function wrap_word()
+  local param = vim.fn.input 'Enter char(s) to wrap word: '
+  if param == '' then
+    return
+  end
+
+  local num_spaces_to_move = #param - 1
+  local move_cmd = ''
+  if num_spaces_to_move > 0 then
+    move_cmd = num_spaces_to_move .. 'h'
+  end
+
+  local cmd = string.format('ciw%s%s<ESC>%sP', param, param, move_cmd)
+
+  vim.cmd('normal! ' .. vim.api.nvim_replace_termcodes(cmd, true, true, true))
+end
+
+vim.keymap.set('n', '<leader>ww', wrap_word, { desc = '[W]rap [W]ord with character(s).' })