update reference table number and add formatting change (#70)

Author: kar-rahul-aws

ch05.md

@@ -905,8 +905,8 @@ Figure 5.5 shows the output produced by Example 5.2.
 
 Figure 5.6 demonstrates the sequence of execution that results from
 having the priority of the sending tasks above the priority of the
-receiving task. Table 22 provides a further explanation of Figure 5.6, and
-describes why the first four messages originate from the same task.
+receiving task. Given below is a further explanation of Figure 5.6, and
+description on why the first four messages originate from the same task.
 
 <a name="fig5.6" title="Figure 5.6 The sequence of execution produced by Example 5.2"></a>
 

ch12.md

@@ -171,7 +171,7 @@ Defining a malloc failed hook ensures the application developer is
 notified immediately if an attempt to create a task, queue, semaphore or
 event group fails.
 
-**Stack overflow hook**
+### 12.4.2 Stack overflow hook
 
 Details of the stack overflow hook are provided in section 13.3, Stack
 Overflow.