Update README.md

Author: pplevins

README.md

@@ -12,13 +12,13 @@ To introduce the concepts, design, and structure of the UNIX operating system. T
 5. Shell Programming:  Bash: loops, functions and arrays.
 
 **Part Two: C programming in UNIX**  
-  6. Compiling C and Running C programs: arguments, stdio, exit codes, environment, libraries, make.
-  7. File Accessing: open/close/read/write.
-  8. Process Management: ps/kill, creation (system, fork, exec), signals, termination, wait, zombies.
-  9. InterProcess Communication: Pipes.
-  10. Threads: creation, parameters, join, return values, attributes, cancellation, sync/async, critical section, thread data, cleanup.
-  11. Process and Thread Synchronization: using mutexes and conditions on pthreads.
-  12. Creating and Using thread pools.
+1. Compiling C and Running C programs: arguments, stdio, exit codes, environment, libraries, make.
+2. File Accessing: open/close/read/write.
+3. Process Management: ps/kill, creation (system, fork, exec), signals, termination, wait, zombies.
+4. InterProcess Communication: Pipes.
+5. Threads: creation, parameters, join, return values, attributes, cancellation, sync/async, critical section, thread data, cleanup.
+6. Process and Thread Synchronization: using mutexes and conditions on pthreads.
+7. Creating and Using thread pools.
 
 ## Lab:
 1. 	Commands in UNIX (not handed it)