Fix guide -c -operators. Fixed formatting, added examples (#22717)

* working on fixing sizeof() operator

* working on fixing sizeof() operator

* Update index.md

* Update index.md

guide/english/c/operators/index.md

@@ -191,15 +191,42 @@ int main()
   a %= 5; // equivalent to a = a % 5 = 21 % 5 = 1
   ```
 
-Misc Operators ↦ sizeof & ternary
+## 6. Misc Operators, sizeof(), Address, Value at Address and Ternary
-Besides the operators discussed above, there are a few other important operators including sizeof and ? : supported by the C Language.
 
-Operator	               Description	                                        Example
+- `sizeof()`  Returns the amount of memory allocated.
-sizeof()	               Returns the size of a variable.	                    sizeof(a), where a is integer, will return 4.
+  ```C
-&	                    Returns the address of a variable.	                    &a; returns the actual address of the variable.
+  int a;
-*	                    Pointer to a variable.	                              *a;
+  sizeof(a);  // result is 4
-? :	                    Conditional Expression.	                              If Condition is true ? then value X : otherwise value Y
 
+  double b;
+  sizeof(b);  // result is 8
+
+  // note the result of sizeof() may vary depending on the type of machine.
+  ```
+- `&`  Address Operator, Gives the address of a variable.
+  ```C
+  int a;
+  &a;  // result an address such as 860328156
+  ```
+- `*`  Value at Address Operator, gives the value at an address.
+  ```C
+  int a = 50;
+  int *b = &a;
+  &a; // result is the address of 'a' such as 1152113732
+  *b; // result is 50, the value stored at the address
+  ```
+- `? :`  Ternery Operator, simplifies a typical if-else conditional.  condition ? value_if_true : value_if_false 
+  ```C
+  // a typical if-else statement in c
+  if (a > b) {
+     result = x;
+  }
+  else {
+     result = y;
+  }
+  // can be rewritten with the ternary operator as
+  result = a > b ? x : y;
+  ```
 
 ## 6. Operator precedence and associativity in C
 Operators with the highest precedence appear at the top of the list. Within an expression, operators