Improve clarity and correctness in Chapter 4 (Muxandplex) documentation

[SouparnaChatterjee]

Body:

Description

The current Chapter 4 (Muxandplex) documentation contains minor ambiguities and areas where technical explanations can be improved for clarity.

In particular:

-> MSB and LSB detector explanations can cause confusion regarding leftmost vs rightmost bit interpretation.

-> Decoder description can be made more precise.

-> Minor wording improvements can improve readability and consistency.

Proposed Changes

-> Clarify MSB detector behavior (leftmost 1)

-> Clarify LSB detector behavior (rightmost 1)

-> Improve decoder output description

-> Refine technical wording without changing functionality

Additional Context

->These are documentation-only improvements.
No functional or UI changes are involved.

[Emanuelmsjv]

Hi, I'd like to work on this issue. I plan to review the current Chapter 4 (Muxandplex) documentation and improve the clarity of MSB/LSB detector explanations and the Decoder description.