feat(config): simplify list command and add subcommand aliases

- config list: remove -l/--long option, always display URL
- config list: add ls alias (already existed, kept)
- config delete: add rm alias (alongside existing remove alias)
- README: add config update, config list, config delete sections

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

mdrsclient/commands/config.py

@@ -26,10 +26,9 @@ class ConfigCommand(BaseCommand):
         update_parser.set_defaults(func=cls.func_update)
         # config list
         list_parser = config_parsers.add_parser("list", help="list all the remote hosts", aliases=["ls"])
-        list_parser.add_argument("-l", "--long", help="show the api url", action="store_true")
         list_parser.set_defaults(func=cls.func_list)
         # config delete
-        delete_parser = config_parsers.add_parser("delete", help="delete an existing remote host", aliases=["remove"])
+        delete_parser = config_parsers.add_parser("delete", help="delete an existing remote host", aliases=["remove", "rm"])
         delete_parser.add_argument("remote", help="label of remote host")
         delete_parser.set_defaults(func=cls.func_delete)
 
@@ -47,8 +46,7 @@ class ConfigCommand(BaseCommand):
 
     @classmethod
     def func_list(cls, args: Namespace) -> None:
-        is_long = bool(args.long)
-        cls.list(is_long)
+        cls.list()
 
     @classmethod
     def func_delete(cls, args: Namespace) -> None:
@@ -74,13 +72,10 @@ class ConfigCommand(BaseCommand):
             config.url = url
 
     @classmethod
-    def list(cls, is_long: bool) -> None:
+    def list(cls) -> None:
         config = ConfigFile("")
         for remote, url in config.list():
-            line = f"{remote}:"
-            if is_long:
-                line += f"\t{url}"
-            print(line)
+            print(f"{remote}:\t{url}")
 
     @classmethod
     def delete(cls, remote: str) -> None: