docs: Fix MSB and LSB detector bit position descriptions

[sharanyas06]

Fixes #

Changes done:

• Fixed MSB Detector description (changed "rightmost" to "leftmost")
• Fixed LSB Detector description (changed "leftmost" to "rightmost")

Screenshots:

N/A - Text-only documentation fix

Preview Link(s):

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Why This Matters

The previous descriptions were reversed and could confuse students learning digital logic.

• MSB (Most Significant Bit) is the leftmost bit (highest place value)
• LSB (Least Significant Bit) is the rightmost bit (lowest place value)

The documentation previously had these reversed. As a student studying digital electronics, I noticed this error while reviewing.

Summary by CodeRabbit

• Documentation
  • Corrected textual descriptions for MSB and LSB detector documentation to accurately reflect bit positions.

[coderabbitai]

Walkthrough

This pull request contains corrections to textual descriptions in the documentation file for multiplexer and demultiplexer content. Specifically, the MSB detector description is updated to reference "leftmost bit" instead of "rightmost bit," while the LSB detector description is corrected to reference "rightmost bit" instead of "leftmost bit." These changes affect only the descriptive text and do not alter any functional logic or structural elements.

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title directly and accurately describes the main change: correcting MSB and LSB detector bit position descriptions in the documentation.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.

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[coderabbitai]

🧹 Nitpick comments (1)

docs/chapter4/5muxandplex.md (1)

257-257: Correction is accurate — consider tightening "leftmost bit" to "leftmost set bit".

The swap from "rightmost" to "leftmost" for MSB is correct per standard binary convention. A minor precision gap remains: the MSB detector locates the highest active (set) bit, not the unconditionally leftmost bit. For input 0110 (4-bit), it outputs position 2, not position 3. Since the "In other words" clause is meant as a student-friendly clarifier, "leftmost set bit" (and "rightmost set bit" for LSB on line 276) would be more accurate.

✏️ Optional wording improvement

-The **Most Significant Bit (MSB)** detector circuit element outputs the bit position of the most significant bit of the input. In other words, it outputs the bit position of the leftmost bit.
+The **Most Significant Bit (MSB)** detector circuit element outputs the bit position of the most significant active bit of the input. In other words, it outputs the bit position of the leftmost set bit.

-The **Least Significant Bit (LSB)** detector circuit element outputs the bit position of the least significant bit of the input. In other words, it outputs the bit position of the rightmost bit.
+The **Least Significant Bit (LSB)** detector circuit element outputs the bit position of the least significant active bit of the input. In other words, it outputs the bit position of the rightmost set bit.

🤖 Prompt for AI Agents

Verify each finding against the current code and only fix it if needed.

In `@docs/chapter4/5muxandplex.md` at line 257, Update the descriptive text for
the MSB detector: change the phrase "leftmost bit" to "leftmost set bit" in the
MSB detector paragraph (the sentence starting "In other words, it outputs the
bit position of the leftmost bit.") to make clear it finds the highest active
bit; also mirror this precision for the LSB description (the LSB paragraph
around the later sentence) by replacing "rightmost bit" with "rightmost set
bit".

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Nitpick comments:
In `@docs/chapter4/5muxandplex.md`:
- Line 257: Update the descriptive text for the MSB detector: change the phrase
"leftmost bit" to "leftmost set bit" in the MSB detector paragraph (the sentence
starting "In other words, it outputs the bit position of the leftmost bit.") to
make clear it finds the highest active bit; also mirror this precision for the
LSB description (the LSB paragraph around the later sentence) by replacing
"rightmost bit" with "rightmost set bit".

[Nihal4777]

Good catch @sharanyas06. Thanks.🙌