swayrbar: prefer tag and add changelog

pkgs/by-name/sw/swayrbar/package.nix

@@ -14,7 +14,7 @@ rustPlatform.buildRustPackage rec {
   src = fetchFromSourcehut {
     owner = "~tsdh";
     repo = "swayr";
-    rev = "swayrbar-${version}";
+    tag = "swayrbar-${version}";
     sha256 = "sha256-uT8MYgH9kANQ0t+7jqjOOvQIZf5ImdQruZLLlCejwcc=";
   };
 
@@ -37,6 +37,7 @@ rustPlatform.buildRustPackage rec {
   meta = {
     description = "Status command for sway's swaybar implementing the swaybar-protocol";
     homepage = "https://git.sr.ht/~tsdh/swayr#a-idswayrbarswayrbara";
+    changelog = "https://git.sr.ht/~tsdh/swayr/tree/main/item/swayrbar/NEWS.md";
     license = with lib.licenses; [ gpl3Plus ];
     platforms = lib.platforms.linux;
     maintainers = with lib.maintainers; [ ilkecan ];