modules/neovim: rename vim.spellChecking to vim.spellcheck

more consistent this way

modules/neovim/init/spellcheck.nix

@@ -3,25 +3,29 @@
   lib,
   ...
 }: let
-  inherit (lib.modules) mkIf;
-  inherit (lib.options) mkOption mkEnableOption literalExpression literalMD;
+  inherit (lib.modules) mkIf mkRenamedOptionModule;
+  inherit (lib.options) mkOption mkEnableOption literalExpression;
   inherit (lib.types) listOf str;
   inherit (lib.nvim.lua) listToLuaTable;
   inherit (lib.nvim.dag) entryAfter;
 
-  cfg = config.vim.spellChecking;
+  cfg = config.vim.spellcheck;
 in {
-  options.vim.spellChecking = {
+  imports = [
+    (mkRenamedOptionModule ["vim" "spellChecking"] ["vim" "spellcheck"])
+  ];
+
+  options.vim.spellcheck = {
     enable = mkEnableOption "neovim's built-in spellchecking";
     languages = mkOption {
       type = listOf str;
       default = ["en"];
       example = literalExpression ''["en" "de"]'';
-      description = literalMD ''
+      description = ''
         A list of languages that should be used for spellchecking.
 
         To add your own language files, you may place your `spell`
-        directory in either {path}`~/.config/nvim` or the
+        directory in either `~/.config/nvim` or the
         [additionalRuntimePaths](#opt-vim.additionalRuntimePaths)
         directory provided by neovim-flake.
       '';
@@ -49,12 +53,12 @@ in {
   };
 
   config = mkIf cfg.enable {
-    vim.luaConfigRC.spellchecking = entryAfter ["basic"] ''
+    vim.luaConfigRC.spellcheck = entryAfter ["basic"] ''
       vim.opt.spell = true
       vim.opt.spelllang = ${listToLuaTable cfg.languages}
 
       -- Disable spellchecking for certain filetypes
-      -- as configured by `vim.spellChecking.ignoredFiletypes`
+      -- as configured by `vim.spellcheck.ignoredFiletypes`
       vim.api.nvim_create_autocmd({ "FileType" }, {
         pattern = ${listToLuaTable cfg.ignoredFiletypes},
         callback = function()