correct typo in instanceof (#24332)

guide/english/java/basic-operations/index.md

@@ -38,10 +38,10 @@ False Condition:
     int y = (x == 10) ? 5 : 9; // y will equal 9 since the expression x == 10 evaluates to false
 ```
 
-The instance of operator is used for type checking. It can be used to test if an object is an instance of a class, a subclass or an interface. General format-
+The `instanceof` operator is used for type checking. It can be used to test if an object is an instance of a class, a subclass or an interface. General format-
 *object **instance** of class/subclass/interface*
 
-Here is a program to illustrate instanecof operator:
+Here is a program to illustrate the `instanceof` operator:
 ```Java
   Person obj1 = new Person();
         Person obj2 = new Boy();