ci: fix typo

Author: Robitx

.github/workflows/docgen.yml

@@ -14,7 +14,7 @@ jobs:
         uses: kdheepak/panvimdoc@main
         with:
           vimdoc: gp.nvim
-          version: "For Neovim"
+          version: "Neovim"
           demojify: true
           treesitter: true
           docmapping: true