natural-docs: 2.1.1 -> 2.2

pkgs/applications/misc/natural-docs/default.nix

···
 
 stdenv.mkDerivation rec {
   pname = "natural-docs";
-  version = "2.1.1";
+  version = "2.2";
 
   src = fetchzip {
     url = "https://naturaldocs.org/download/natural_docs/${version}/Natural_Docs_${version}.zip";
-    sha256 = "03fizjgvhiw3lqyykqw1whdh97xyiy3f226c1348ll61ryjxamqw";
+    sha256 = "sha256-W0E9wamzABnPleVhHHXTIdWJk8kWnrUHojM+pcsowy8=";
   };
 
   dontPatch = true;