Update the documentation

Remove "``` ```" symbols in line 163.

Author: SamFu1113

ReadMe.md

@@ -160,7 +160,7 @@ ipcrm sem id
 ## Notes
     In order to achieve the goal, I need to think of some ways to use semaphore to coordinate the processes. Try to let *p1* prints message once first.  After that, *p2* is allowed to print message. Next, *p3* is allowed to print message twice.
 
-```**NOTE THAT**```, someone may test my program by different order such as:
+**NOTE THAT**, someone may test my program by different order such as:
 ```p1 & ; p3 & ; p2 &``` but my program output should be the same.
 
 **NOTE THAT**, when someone tests my program, he(she) will use ipcrm to clear any existing semaphores. So, I should do so as well. Clear all the semaphores by ipcrm before running my program.