Add GitHub Actions workflow to deploy MkDocs to GitHub Pages

.github/workflows/docs.yml

@@ -0,0 +1,58 @@
+name: Deploy MkDocs to GitHub Pages
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - 'docs/**'
+      - 'mkdocs.yml'
+      - '.github/workflows/docs.yml'
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0  # Required for git-revision-date-localized plugin
+
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.12"
+
+      - name: Install MkDocs and plugins
+        run: |
+          python -m pip install --upgrade pip
+          pip install mkdocs mkdocs-material mkdocs-mermaid2-plugin mkdocs-awesome-pages-plugin mkdocs-git-revision-date-localized-plugin
+
+      - name: Build MkDocs site
+        run: mkdocs build --clean
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: site
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4

docs/index.md

@@ -0,0 +1,52 @@
+# Python Interview Algorithms Workbook
+
+[![CI](https://github.com/ianlintner/python_dsa/actions/workflows/ci.yml/badge.svg?branch=main)](https://github.com/ianlintner/python_dsa/actions/workflows/ci.yml)
+
+Clean, idiomatic Python implementations for senior/staff-level interview prep with complexity notes, pitfalls, demos, and tests.
+
+![Project overview screenshot](assets/visual.png)
+
+## Quick Navigation
+
+- [Engineering Study Plan](ENGINEERING_STUDY_PLAN.md) - Structured study guide from Intern to Principal level
+- [Algorithms Portfolio](ALGORITHMS_PORTFOLIO.md) - Complete portfolio of algorithm implementations
+- [Learning Path](LEARNING_PATH.md) - 2-3 week structured learning plan with checkpoints
+- [Consistency Models](CONSISTENCY_MODELS.md) - Distributed systems consistency patterns
+- [System Design Guide](INTERVIEW_SYSTEM_DESIGN.md) - Interview system design preparation
+- [NeetCode Top 100](NEETCODE_TOP100.md) - Must-know LeetCode problems
+
+## Modules Overview
+
+- **algorithms/sorting** - Comparison (merge, quick, heap, insertion, selection, bubble) and non-comparison (counting, radix)
+- **algorithms/searching** - Binary search family, advanced search, selection algorithms
+- **data_structures** - Union-Find (DSU), Trie, LRU/LFU caches, Fenwick tree, Segment tree
+- **graphs** - BFS/DFS, Topological sort, Dijkstra, A*, Bellman-Ford, Floyd-Warshall, MST, SCC
+- **dp** - Fibonacci, coin change, LIS, knapsack, edit distance, bitmask TSP, LCS
+- **strings** - KMP, Rabin-Karp, Z-algorithm, Manacher, suffix array/LCP
+- **math_utils** - Sieve, GCD/LCM, modular arithmetic, prefix sums
+- **patterns** - Sliding window, monotonic stack/queue, two pointers, backtracking
+- **systems/concurrency** - Reservoir sampling, rate limiters, consensus notes
+
+## Getting Started
+
+Install (editable) and run tests:
+
+```bash
+python -m pip install -U pip
+python -m pip install -e .
+pytest -q
+```
+
+Run demos:
+
+```bash
+python src/main.py --list
+python src/main.py --demo sorting.merge_sort
+python src/main.py --demo searching.binary_search
+python src/main.py --demo dp.lcs
+python src/main.py --demo graphs.scc
+```
+
+## Repository
+
+For the full source code and contributions, visit the [GitHub repository](https://github.com/ianlintner/python_dsa).

mkdocs.yml

@@ -43,9 +43,15 @@ markdown_extensions:
   - pymdownx.tilde
 nav:
   - Home: index.md
-  - Engineering Study Plan: docs/ENGINEERING_STUDY_PLAN.md
-  - Algorithms Portfolio: docs/ALGORITHMS_PORTFOLIO.md
-  - Learning Path: docs/LEARNING_PATH.md
-  - Consistency Models: docs/CONSISTENCY_MODELS.md
-  - System Design Guide: docs/INTERVIEW_SYSTEM_DESIGN.md
-  - NeetCode Top 100: docs/NEETCODE_TOP100.md
+  - Engineering Study Plan: ENGINEERING_STUDY_PLAN.md
+  - Algorithms Portfolio: ALGORITHMS_PORTFOLIO.md
+  - Learning Path: LEARNING_PATH.md
+  - Consistency Models: CONSISTENCY_MODELS.md
+  - System Design Guide: INTERVIEW_SYSTEM_DESIGN.md
+  - NeetCode Top 100: NEETCODE_TOP100.md
+  - System Design Interviews:
+      - AI System Design Glossary: system_design_interviews/ai_system_design_glossary.md
+      - Bitly Clone: system_design_interviews/bitly_clone.md
+      - Facebook Clone: system_design_interviews/facebook_clone.md
+      - Twitter Clone: system_design_interviews/twitter_clone.md
+      - WhatsApp Clone: system_design_interviews/whatsapp_clone.md