ci: docgen tweaks

Author: Robitx

.github/workflows/ci.yml renamed to .github/workflows/docgen.yml

@@ -1,4 +1,4 @@
-name: CI
+name: docgen
 on:
   push:
   pull_request:
@@ -14,6 +14,7 @@ jobs:
         uses: kdheepak/panvimdoc@main
         with:
           vimdoc: gp.nvim
+          version: "For Neovim"
           demojify: true
           treesitter: true
           docmapping: true