Fix examples for del in manual

docs/content/3.manual/manual.yml

@@ -658,10 +658,10 @@ sections:
 
         examples:
           - program: 'del(.foo)'
-            input: '[{"foo": 42, "bar": 9001, "baz": 42}]'
+            input: '{"foo": 42, "bar": 9001, "baz": 42}'
             output: ['{"bar": 9001, "baz": 42}']
           - program: 'del(.[1, 2])'
-            input: '[["foo", "bar", "baz"]]'
+            input: '["foo", "bar", "baz"]'
             output: ['["foo"]']
 
       - title: "`to_entries`, `from_entries`, `with_entries`"