Update mkdocs.yml for improved theme configuration and navigation structure

- Enhanced theme settings by adding light and dark mode options with appropriate toggles.
- Restructured navigation for workshops and office hours to improve clarity and organization, aligning chapters with specific cohorts.
- Introduced a new document mapping office hours questions to workshop chapters for better integration of resources.
- Added a comprehensive overview of RAG applications to the documentation, providing a systematic approach to improvement.

Author: jxnl

docs/office-hours/index.md

@@ -7,32 +7,38 @@ description: Summaries and key insights from weekly office hours sessions
 
 This section contains summaries and key insights from our weekly office hours sessions, where we discuss challenges, solutions, and best practices for RAG systems.
 
+Office hours are now organized by chapter, matching the structure of the main workshop curriculum. Each chapter contains all relevant sessions from both Cohort 2 and Cohort 3 for that topic/week.
+
 If you want to see all the questions and answers, you can find them in the [FAQ](faq.md) page.
 
 [See all FAQ Questions](faq.md){ .md-button .md-button--primary }
 
-## Available Sessions
+## Chapters & Sessions
+
+### Chapter 1: Starting the Flywheel
+- Cohort 2: [Week 1 Summary](cohort2/week1-summary.md)
+- Cohort 3: [Session 1](cohort3/week-1-1.md), [Session 2](cohort3/week-1-2.md)
 
-### Cohort 2
+### Chapter 2: From Evaluation to Enhancement
+- Cohort 2: [Week 2 Summary](cohort2/week2-summary.md)
+- Cohort 3: [Session 1](cohort3/week-2-1.md), [Session 2](cohort3/week-2-2.md)
 
-- [Week 1 Summary](cohort2/week1-summary.md)
-- [Week 2 Summary](cohort2/week2-summary.md)
-- [Week 3 Summary](cohort2/week3-summary.md)
-- [Week 4 Summary](cohort2/week4-summary.md)
-- [Week 5 Summary](cohort2/week5-summary.md)
-- [Week 6 Summary](cohort2/week6-summary.md)
+### Chapter 3: User Experience
+- Cohort 2: [Week 3 Summary](cohort2/week3-summary.md)
+- Cohort 3: [Session 1](cohort3/week-3-1.md)
 
-### Cohort 3
+### Chapter 4: Topic Modeling
+- Cohort 2: [Week 4 Summary](cohort2/week4-summary.md)
+- Cohort 3: [Session 1](cohort3/week-4-1.md), [Session 2](cohort3/week-4-2.md)
 
-- [Week 1 Session 1](cohort3/week-1-1.md)
-- [Week 1 Session 2](cohort3/week-1-2.md)
-- [Week 2 Session 1](cohort3/week-2-1.md)
-- [Week 2 Session 2](cohort3/week-2-2.md)
-- [Week 3 Session 1](cohort3/week-3-1.md)
-- [Week 4 Session 1](cohort3/week-4-1.md)
-- [Week 4 Session 2](cohort3/week-4-2.md)
+### Chapter 5: Multimodal Capabilities
+- Cohort 2: [Week 5 Summary](cohort2/week5-summary.md)
+- Cohort 3: [Session 1](cohort3/week-5-1.md), [Session 2](cohort3/week-5-2.md)
 
-### Additional Sessions
+### Chapter 6: Architecture
+- Cohort 2: [Week 6 Summary](cohort2/week6-summary.md)
+
+---
 
 Each summary captures the questions, answers, and discussions from our sessions, providing additional context and real-world examples to complement the workshop materials.