Refactor E and S

WEEK01/WEEK01-04.md

@@ -1,10 +1,10 @@
-# Embedded Systems Reverse Engineering
+# Embedded Systems Reverse Engineering
 [Repository](https://github.com/mytechnotalent/Embedded-Hacking)
 
 ## Week 1
 Introduction and Overview of Embedded Reverse Engineering: Ethics, Scoping, and Basic Concepts
 
-### Exercise 4: Connect GDB & Basic Exploration
+### Non-Credit Practice Exercise 4: Connect GDB & Basic Exploration
 
 #### Objective
 Set up GDB (GNU Debugger) to dynamically analyze the "hello, world" program running on your Pico 2, verifying that your debugging setup works correctly.
@@ -350,12 +350,12 @@ This is useful when you want to break on a condition rather than every time.
 #### Summary
 
 By completing this exercise, you've:
-1. ✅ Set up OpenOCD as a debug server
-2. ✅ Connected GDB to a Pico 2 board
-3. ✅ Set a breakpoint and halted execution
-4. ✅ Examined assembly language in a live debugger
-5. ✅ Viewed CPU registers and their values
-6. ✅ Verified your dynamic debugging setup works
+1. ? Set up OpenOCD as a debug server
+2. ? Connected GDB to a Pico 2 board
+3. ? Set a breakpoint and halted execution
+4. ? Examined assembly language in a live debugger
+5. ? Viewed CPU registers and their values
+6. ? Verified your dynamic debugging setup works
 
 You're now ready for Week 2, where you'll:
 - Step through code line by line