add just doc

Author: zachary62

docs/_config.yml

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+# Basic site settings
+title: Pocket Flow
+tagline: A 100-line LLM framework
+description: Minimalist LLM Framework in 100 Lines, Enabling LLMs to Program Themselves
+
+# Theme settings
+remote_theme: just-the-docs/just-the-docs
+
+# Navigation
+nav_sort: case_sensitive
+
+# Aux links (shown in upper right)
+aux_links:
+  "View on GitHub":
+    - "//github.com/the-pocket/PocketFlow"
+    
+# Color scheme
+color_scheme: light
+
+# Author settings
+author:
+    name: Zachary Huang
+    url: https://www.columbia.edu/~zh2408/
+    twitter: ZacharyHuang12
+
+# Mermaid settings
+mermaid:
+  version: "9.1.3"  # Pick the version you want
+  # Default configuration
+  config: |
+    directionLR
+
+# Callouts settings
+callouts:
+  warning:
+    title: Warning
+    color: red
+  note:
+    title: Note
+    color: blue
+  best-practice:
+    title: Best Practice
+    color: green
+  
+# The custom navigation
+nav:
+  - Home: index.md       # Link to your main docs index
+  - GitHub: "https://github.com/the-pocket/PocketFlow"
+  - Discord: "https://discord.gg/hUHHE9Sa6T"

docs/index.md

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+---
+layout: default
+title: "Home"
+nav_order: 1
+---
+
+# Pocket Flow
+
+A [100-line](https://github.com/the-pocket/PocketFlow/blob/main/pocketflow/__init__.py) minimalist LLM framework for *Agents, Task Decomposition, RAG, etc*.
+
+- **Lightweight**: Just the core graph abstraction in 100 lines. ZERO dependencies, and vendor lock-in.
+- **Expressive**: Everything you love from larger frameworks—([Multi-](./design_pattern/multi_agent.html))[Agents](./design_pattern/agent.html), [Workflow](./design_pattern/workflow.html), [RAG](./design_pattern/rag.html), and more.  
+- **Agentic-Coding**: Intuitive enough for AI agents to help humans build complex LLM applications.
+
+<div align="center">
+  <img src="https://github.com/the-pocket/.github/raw/main/assets/meme.jpg?raw=true" width="400"/>
+</div>
+
+
+## Core Abstraction
+
+We model the LLM workflow as a **Graph + Shared Store**:
+
+- [Node](./core_abstraction/node.md) handles simple (LLM) tasks.
+- [Flow](./core_abstraction/flow.md) connects nodes through **Actions** (labeled edges).
+- [Shared Store](./core_abstraction/communication.md) enables communication between nodes within flows.
+- [Batch](./core_abstraction/batch.md) nodes/flows allow for data-intensive tasks.
+- [Async](./core_abstraction/async.md) nodes/flows allow waiting for asynchronous tasks.
+- [(Advanced) Parallel](./core_abstraction/parallel.md) nodes/flows handle I/O-bound tasks.
+
+<div align="center">
+  <img src="https://github.com/the-pocket/.github/raw/main/assets/abstraction.png" width="700"/>
+</div>
+
+## Design Pattern
+
+From there, it’s easy to implement popular design patterns:
+
+- [Agent](./design_pattern/agent.md) autonomously makes decisions.
+- [Workflow](./design_pattern/workflow.md) chains multiple tasks into pipelines.
+- [RAG](./design_pattern/rag.md) integrates data retrieval with generation.
+- [Map Reduce](./design_pattern/mapreduce.md) splits data tasks into Map and Reduce steps.
+- [Structured Output](./design_pattern/structure.md) formats outputs consistently.
+- [(Advanced) Multi-Agents](./design_pattern/multi_agent.md) coordinate multiple agents.
+
+<div align="center">
+  <img src="https://github.com/the-pocket/.github/raw/main/assets/design.png" width="700"/>
+</div>
+
+## Utility Function
+
+We **do not** provide built-in utilities. Instead, we offer *examples*—please *implement your own*:
+
+- [LLM Wrapper](./utility_function/llm.md)
+- [Viz and Debug](./utility_function/viz.md)
+- [Web Search](./utility_function/websearch.md)
+- [Chunking](./utility_function/chunking.md)
+- [Embedding](./utility_function/embedding.md)
+- [Vector Databases](./utility_function/vector.md)
+- [Text-to-Speech](./utility_function/text_to_speech.md)
+
+**Why not built-in?**: I believe it's a *bad practice* for vendor-specific APIs in a general framework:
+- *API Volatility*: Frequent changes lead to heavy maintenance for hardcoded APIs.
+- *Flexibility*: You may want to switch vendors, use fine-tuned models, or run them locally.
+- *Optimizations*: Prompt caching, batching, and streaming are easier without vendor lock-in.
+
+## Ready to build your Apps? 
+
+Check out [Agentic Coding Guidance](./guide.md), the fastest way to develop LLM projects with Pocket Flow!