python310Packages.plantuml-markdown: add changelog to meta

- remove let

pkgs/development/python-modules/plantuml-markdown/default.nix

@@ -8,13 +8,15 @@
 , runCommand
 , writeText
 , plantuml-markdown
+, pythonOlder
 }:
-let
+
+buildPythonPackage rec {
   pname = "plantuml-markdown";
   version = "3.9.1";
-in
-buildPythonPackage {
-  inherit pname version;
+  format = "setuptools";
+
+  disabled = pythonOlder "3.7";
 
   src = fetchFromGitHub {
     owner = "mikitex70";
@@ -33,7 +35,9 @@ buildPythonPackage {
   # The package uses a custom script that downloads a certain version of plantuml for testing.
   doCheck = false;
 
-  pythonImportsCheck = [ "plantuml_markdown" ];
+  pythonImportsCheck = [
+    "plantuml_markdown"
+  ];
 
   passthru.tests.example-doc =
     let
@@ -59,6 +63,7 @@ buildPythonPackage {
       diagram which will be converted into an image and inserted in the document.
     '';
     homepage = "https://github.com/mikitex70/plantuml-markdown";
+    changelog = "https://github.com/mikitex70/plantuml-markdown/releases/tag/${version}";
     license = licenses.bsd2;
     maintainers = with maintainers; [ nikstur ];
   };